180757640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:655

約数の個数: 128

約数和(自身を含む): 498182400

約数和(自身を除く): 317424760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 61, 70, 76, 95, 122, 133, 140, 152, 190, 244, 266, 280, 305, 380, 427, 488, 532, 557, 610, 665, 760, 854, 1064, 1114, 1159, 1220, 1330, 1708, 2135, 2228, 2318, 2440, 2660, 2785, 3416, 3899, 4270, 4456, 4636, 5320, 5570, 5795, 7798, 8113, 8540, 9272, 10583, 11140, 11590, 15596, 16226, 17080, 19495, 21166, 22280, 23180, 31192, 32452, 33977, 38990, 40565, 42332, 46360, 52915, 64904, 67954, 74081, 77980, 81130, 84664, 105830, 135908, 148162, 155960, 162260, 169885, 211660, 237839, 271816, 296324, 324520, 339770, 370405, 423320, 475678, 592648, 645563, 679540, 740810, 951356, 1189195, 1291126, 1359080, 1481620, 1902712, 2378390, 2582252, 2963240, 3227815, 4518941, 4756780, 5164504, 6455630, 9037882, 9513560, 12911260, 18075764, 22594705, 25822520, 36151528, 45189410, 90378820, 180757640]

約数ペア:

[(1, 180757640), (2, 90378820), (4, 45189410), (5, 36151528), (7, 25822520), (8, 22594705), (10, 18075764), (14, 12911260), (19, 9513560), (20, 9037882), (28, 6455630), (35, 5164504), (38, 4756780), (40, 4518941), (56, 3227815), (61, 2963240), (70, 2582252), (76, 2378390), (95, 1902712), (122, 1481620), (133, 1359080), (140, 1291126), (152, 1189195), (190, 951356), (244, 740810), (266, 679540), (280, 645563), (305, 592648), (380, 475678), (427, 423320), (488, 370405), (532, 339770), (557, 324520), (610, 296324), (665, 271816), (760, 237839), (854, 211660), (1064, 169885), (1114, 162260), (1159, 155960), (1220, 148162), (1330, 135908), (1708, 105830), (2135, 84664), (2228, 81130), (2318, 77980), (2440, 74081), (2660, 67954), (2785, 64904), (3416, 52915), (3899, 46360), (4270, 42332), (4456, 40565), (4636, 38990), (5320, 33977), (5570, 32452), (5795, 31192), (7798, 23180), (8113, 22280), (8540, 21166), (9272, 19495), (10583, 17080), (11140, 16226), (11590, 15596)]