64387580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 152409600

約数和(自身を除く): 88022020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 53, 76, 92, 95, 106, 115, 139, 190, 212, 230, 265, 278, 380, 437, 460, 530, 556, 695, 874, 1007, 1060, 1219, 1390, 1748, 2014, 2185, 2438, 2641, 2780, 3197, 4028, 4370, 4876, 5035, 5282, 6095, 6394, 7367, 8740, 10070, 10564, 12190, 12788, 13205, 14734, 15985, 20140, 23161, 24380, 26410, 29468, 31970, 36835, 46322, 52820, 60743, 63940, 73670, 92644, 115805, 121486, 139973, 147340, 169441, 231610, 242972, 279946, 303715, 338882, 463220, 559892, 607430, 677764, 699865, 847205, 1214860, 1399730, 1694410, 2799460, 3219379, 3388820, 6438758, 12877516, 16096895, 32193790, 64387580]

約数ペア:

[(1, 64387580), (2, 32193790), (4, 16096895), (5, 12877516), (10, 6438758), (19, 3388820), (20, 3219379), (23, 2799460), (38, 1694410), (46, 1399730), (53, 1214860), (76, 847205), (92, 699865), (95, 677764), (106, 607430), (115, 559892), (139, 463220), (190, 338882), (212, 303715), (230, 279946), (265, 242972), (278, 231610), (380, 169441), (437, 147340), (460, 139973), (530, 121486), (556, 115805), (695, 92644), (874, 73670), (1007, 63940), (1060, 60743), (1219, 52820), (1390, 46322), (1748, 36835), (2014, 31970), (2185, 29468), (2438, 26410), (2641, 24380), (2780, 23161), (3197, 20140), (4028, 15985), (4370, 14734), (4876, 13205), (5035, 12788), (5282, 12190), (6095, 10564), (6394, 10070), (7367, 8740)]