18420240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 160

約数和(自身を含む): 61710336

約数和(自身を除く): 43290096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 47, 48, 60, 69, 71, 80, 92, 94, 115, 120, 138, 141, 142, 184, 188, 213, 230, 235, 240, 276, 282, 284, 345, 355, 368, 376, 426, 460, 470, 552, 564, 568, 690, 705, 710, 752, 852, 920, 940, 1065, 1081, 1104, 1128, 1136, 1380, 1410, 1420, 1633, 1704, 1840, 1880, 2130, 2162, 2256, 2760, 2820, 2840, 3243, 3266, 3337, 3408, 3760, 4260, 4324, 4899, 5405, 5520, 5640, 5680, 6486, 6532, 6674, 8165, 8520, 8648, 9798, 10011, 10810, 11280, 12972, 13064, 13348, 16215, 16330, 16685, 17040, 17296, 19596, 20022, 21620, 24495, 25944, 26128, 26696, 32430, 32660, 33370, 39192, 40044, 43240, 48990, 50055, 51888, 53392, 64860, 65320, 66740, 76751, 78384, 80088, 86480, 97980, 100110, 129720, 130640, 133480, 153502, 160176, 195960, 200220, 230253, 259440, 266960, 307004, 383755, 391920, 400440, 460506, 614008, 767510, 800880, 921012, 1151265, 1228016, 1535020, 1842024, 2302530, 3070040, 3684048, 4605060, 6140080, 9210120, 18420240]

約数ペア:

[(1, 18420240), (2, 9210120), (3, 6140080), (4, 4605060), (5, 3684048), (6, 3070040), (8, 2302530), (10, 1842024), (12, 1535020), (15, 1228016), (16, 1151265), (20, 921012), (23, 800880), (24, 767510), (30, 614008), (40, 460506), (46, 400440), (47, 391920), (48, 383755), (60, 307004), (69, 266960), (71, 259440), (80, 230253), (92, 200220), (94, 195960), (115, 160176), (120, 153502), (138, 133480), (141, 130640), (142, 129720), (184, 100110), (188, 97980), (213, 86480), (230, 80088), (235, 78384), (240, 76751), (276, 66740), (282, 65320), (284, 64860), (345, 53392), (355, 51888), (368, 50055), (376, 48990), (426, 43240), (460, 40044), (470, 39192), (552, 33370), (564, 32660), (568, 32430), (690, 26696), (705, 26128), (710, 25944), (752, 24495), (852, 21620), (920, 20022), (940, 19596), (1065, 17296), (1081, 17040), (1104, 16685), (1128, 16330), (1136, 16215), (1380, 13348), (1410, 13064), (1420, 12972), (1633, 11280), (1704, 10810), (1840, 10011), (1880, 9798), (2130, 8648), (2162, 8520), (2256, 8165), (2760, 6674), (2820, 6532), (2840, 6486), (3243, 5680), (3266, 5640), (3337, 5520), (3408, 5405), (3760, 4899), (4260, 4324)]