20121855450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^2$

素因数の和:477

約数の個数: 144

約数和(自身を含む): 51603098976

約数和(自身を除く): 31481243526

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 53, 75, 106, 131, 139, 150, 159, 262, 265, 278, 318, 393, 417, 530, 655, 695, 786, 795, 834, 1310, 1325, 1390, 1590, 1965, 2085, 2650, 3275, 3475, 3930, 3975, 4170, 6550, 6943, 6950, 7367, 7950, 9825, 10425, 13886, 14734, 18209, 19321, 19650, 20829, 20850, 22101, 34715, 36418, 36835, 38642, 41658, 44202, 54627, 57963, 69430, 73670, 91045, 96605, 104145, 109254, 110505, 115926, 173575, 182090, 184175, 193210, 208290, 221010, 273135, 289815, 347150, 368350, 455225, 483025, 520725, 546270, 552525, 579630, 910450, 965077, 966050, 1024013, 1041450, 1105050, 1365675, 1449075, 1930154, 2048026, 2531051, 2731350, 2895231, 2898150, 3072039, 4825385, 5062102, 5120065, 5790462, 6144078, 7593153, 9650770, 10240130, 12655255, 14476155, 15186306, 15360195, 24126925, 25310510, 25600325, 28952310, 30720390, 37965765, 48253850, 51200650, 63276275, 72380775, 75931530, 76800975, 126552550, 134145703, 144761550, 153601950, 189828825, 268291406, 379657650, 402437109, 670728515, 804874218, 1341457030, 2012185545, 3353642575, 4024371090, 6707285150, 10060927725, 20121855450]

約数ペア:

[(1, 20121855450), (2, 10060927725), (3, 6707285150), (5, 4024371090), (6, 3353642575), (10, 2012185545), (15, 1341457030), (25, 804874218), (30, 670728515), (50, 402437109), (53, 379657650), (75, 268291406), (106, 189828825), (131, 153601950), (139, 144761550), (150, 134145703), (159, 126552550), (262, 76800975), (265, 75931530), (278, 72380775), (318, 63276275), (393, 51200650), (417, 48253850), (530, 37965765), (655, 30720390), (695, 28952310), (786, 25600325), (795, 25310510), (834, 24126925), (1310, 15360195), (1325, 15186306), (1390, 14476155), (1590, 12655255), (1965, 10240130), (2085, 9650770), (2650, 7593153), (3275, 6144078), (3475, 5790462), (3930, 5120065), (3975, 5062102), (4170, 4825385), (6550, 3072039), (6943, 2898150), (6950, 2895231), (7367, 2731350), (7950, 2531051), (9825, 2048026), (10425, 1930154), (13886, 1449075), (14734, 1365675), (18209, 1105050), (19321, 1041450), (19650, 1024013), (20829, 966050), (20850, 965077), (22101, 910450), (34715, 579630), (36418, 552525), (36835, 546270), (38642, 520725), (41658, 483025), (44202, 455225), (54627, 368350), (57963, 347150), (69430, 289815), (73670, 273135), (91045, 221010), (96605, 208290), (104145, 193210), (109254, 184175), (110505, 182090), (115926, 173575)]