72451340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 172730880

約数和(自身を除く): 100279540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 89, 101, 124, 130, 155, 178, 202, 260, 310, 356, 403, 404, 445, 505, 620, 806, 890, 1010, 1157, 1313, 1612, 1780, 2015, 2020, 2314, 2626, 2759, 3131, 4030, 4628, 5252, 5518, 5785, 6262, 6565, 8060, 8989, 11036, 11570, 12524, 13130, 13795, 15655, 17978, 23140, 26260, 27590, 31310, 35867, 35956, 40703, 44945, 55180, 62620, 71734, 81406, 89890, 116857, 143468, 162812, 179335, 179780, 203515, 233714, 278659, 358670, 407030, 467428, 557318, 584285, 717340, 814060, 1114636, 1168570, 1393295, 2337140, 2786590, 3622567, 5573180, 7245134, 14490268, 18112835, 36225670, 72451340]

約数ペア:

[(1, 72451340), (2, 36225670), (4, 18112835), (5, 14490268), (10, 7245134), (13, 5573180), (20, 3622567), (26, 2786590), (31, 2337140), (52, 1393295), (62, 1168570), (65, 1114636), (89, 814060), (101, 717340), (124, 584285), (130, 557318), (155, 467428), (178, 407030), (202, 358670), (260, 278659), (310, 233714), (356, 203515), (403, 179780), (404, 179335), (445, 162812), (505, 143468), (620, 116857), (806, 89890), (890, 81406), (1010, 71734), (1157, 62620), (1313, 55180), (1612, 44945), (1780, 40703), (2015, 35956), (2020, 35867), (2314, 31310), (2626, 27590), (2759, 26260), (3131, 23140), (4030, 17978), (4628, 15655), (5252, 13795), (5518, 13130), (5785, 12524), (6262, 11570), (6565, 11036), (8060, 8989)]