15991920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 64995840

約数和(自身を除く): 49003920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 167, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 304, 315, 334, 336, 342, 360, 380, 399, 420, 456, 501, 504, 532, 560, 570, 630, 665, 668, 684, 720, 760, 798, 835, 840, 855, 912, 1002, 1008, 1064, 1140, 1169, 1197, 1260, 1330, 1336, 1368, 1503, 1520, 1596, 1670, 1680, 1710, 1995, 2004, 2128, 2280, 2338, 2394, 2505, 2520, 2660, 2672, 2736, 3006, 3173, 3192, 3340, 3420, 3507, 3990, 4008, 4560, 4676, 4788, 5010, 5040, 5320, 5845, 5985, 6012, 6346, 6384, 6680, 6840, 7014, 7515, 7980, 8016, 9352, 9519, 9576, 10020, 10521, 10640, 11690, 11970, 12024, 12692, 13360, 13680, 14028, 15030, 15865, 15960, 17535, 18704, 19038, 19152, 20040, 21042, 22211, 23380, 23940, 24048, 25384, 28056, 28557, 30060, 31730, 31920, 35070, 38076, 40080, 42084, 44422, 46760, 47595, 47880, 50768, 52605, 56112, 57114, 60120, 63460, 66633, 70140, 76152, 84168, 88844, 93520, 95190, 95760, 105210, 111055, 114228, 120240, 126920, 133266, 140280, 142785, 152304, 168336, 177688, 190380, 199899, 210420, 222110, 228456, 253840, 266532, 280560, 285570, 333165, 355376, 380760, 399798, 420840, 444220, 456912, 533064, 571140, 666330, 761520, 799596, 841680, 888440, 999495, 1066128, 1142280, 1332660, 1599192, 1776880, 1998990, 2284560, 2665320, 3198384, 3997980, 5330640, 7995960, 15991920]

約数ペア:

[(1, 15991920), (2, 7995960), (3, 5330640), (4, 3997980), (5, 3198384), (6, 2665320), (7, 2284560), (8, 1998990), (9, 1776880), (10, 1599192), (12, 1332660), (14, 1142280), (15, 1066128), (16, 999495), (18, 888440), (19, 841680), (20, 799596), (21, 761520), (24, 666330), (28, 571140), (30, 533064), (35, 456912), (36, 444220), (38, 420840), (40, 399798), (42, 380760), (45, 355376), (48, 333165), (56, 285570), (57, 280560), (60, 266532), (63, 253840), (70, 228456), (72, 222110), (76, 210420), (80, 199899), (84, 190380), (90, 177688), (95, 168336), (105, 152304), (112, 142785), (114, 140280), (120, 133266), (126, 126920), (133, 120240), (140, 114228), (144, 111055), (152, 105210), (167, 95760), (168, 95190), (171, 93520), (180, 88844), (190, 84168), (210, 76152), (228, 70140), (240, 66633), (252, 63460), (266, 60120), (280, 57114), (285, 56112), (304, 52605), (315, 50768), (334, 47880), (336, 47595), (342, 46760), (360, 44422), (380, 42084), (399, 40080), (420, 38076), (456, 35070), (501, 31920), (504, 31730), (532, 30060), (560, 28557), (570, 28056), (630, 25384), (665, 24048), (668, 23940), (684, 23380), (720, 22211), (760, 21042), (798, 20040), (835, 19152), (840, 19038), (855, 18704), (912, 17535), (1002, 15960), (1008, 15865), (1064, 15030), (1140, 14028), (1169, 13680), (1197, 13360), (1260, 12692), (1330, 12024), (1336, 11970), (1368, 11690), (1503, 10640), (1520, 10521), (1596, 10020), (1670, 9576), (1680, 9519), (1710, 9352), (1995, 8016), (2004, 7980), (2128, 7515), (2280, 7014), (2338, 6840), (2394, 6680), (2505, 6384), (2520, 6346), (2660, 6012), (2672, 5985), (2736, 5845), (3006, 5320), (3173, 5040), (3192, 5010), (3340, 4788), (3420, 4676), (3507, 4560), (3990, 4008)]