3997980

素因数分解:

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

素因数の和:208

約数の個数: 144

約数和(自身を含む): 14676480

約数和(自身を除く): 10678500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 167, 171, 180, 190, 210, 228, 252, 266, 285, 315, 334, 342, 380, 399, 420, 501, 532, 570, 630, 665, 668, 684, 798, 835, 855, 1002, 1140, 1169, 1197, 1260, 1330, 1503, 1596, 1670, 1710, 1995, 2004, 2338, 2394, 2505, 2660, 3006, 3173, 3340, 3420, 3507, 3990, 4676, 4788, 5010, 5845, 5985, 6012, 6346, 7014, 7515, 7980, 9519, 10020, 10521, 11690, 11970, 12692, 14028, 15030, 15865, 17535, 19038, 21042, 22211, 23380, 23940, 28557, 30060, 31730, 35070, 38076, 42084, 44422, 47595, 52605, 57114, 63460, 66633, 70140, 88844, 95190, 105210, 111055, 114228, 133266, 142785, 190380, 199899, 210420, 222110, 266532, 285570, 333165, 399798, 444220, 571140, 666330, 799596, 999495, 1332660, 1998990, 3997980]

約数ペア:

[(1, 3997980), (2, 1998990), (3, 1332660), (4, 999495), (5, 799596), (6, 666330), (7, 571140), (9, 444220), (10, 399798), (12, 333165), (14, 285570), (15, 266532), (18, 222110), (19, 210420), (20, 199899), (21, 190380), (28, 142785), (30, 133266), (35, 114228), (36, 111055), (38, 105210), (42, 95190), (45, 88844), (57, 70140), (60, 66633), (63, 63460), (70, 57114), (76, 52605), (84, 47595), (90, 44422), (95, 42084), (105, 38076), (114, 35070), (126, 31730), (133, 30060), (140, 28557), (167, 23940), (171, 23380), (180, 22211), (190, 21042), (210, 19038), (228, 17535), (252, 15865), (266, 15030), (285, 14028), (315, 12692), (334, 11970), (342, 11690), (380, 10521), (399, 10020), (420, 9519), (501, 7980), (532, 7515), (570, 7014), (630, 6346), (665, 6012), (668, 5985), (684, 5845), (798, 5010), (835, 4788), (855, 4676), (1002, 3990), (1140, 3507), (1169, 3420), (1197, 3340), (1260, 3173), (1330, 3006), (1503, 2660), (1596, 2505), (1670, 2394), (1710, 2338), (1995, 2004)]