641652092360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1\times {\mathrm{5323}}^1$

素因数の和:5911

約数の個数: 128

約数和(自身を含む): 1483019366400

約数和(自身を除く): 841367274040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 127, 244, 254, 305, 389, 488, 508, 610, 635, 778, 1016, 1220, 1270, 1556, 1945, 2440, 2540, 3112, 3890, 5080, 5323, 7747, 7780, 10646, 15494, 15560, 21292, 23729, 26615, 30988, 38735, 42584, 47458, 49403, 53230, 61976, 77470, 94916, 98806, 106460, 118645, 154940, 189832, 197612, 212920, 237290, 247015, 309880, 324703, 395224, 474580, 494030, 649406, 676021, 949160, 988060, 1298812, 1352042, 1623515, 1976120, 2070647, 2597624, 2704084, 3013583, 3247030, 3380105, 4141294, 5408168, 6027166, 6494060, 6760210, 8282588, 10353235, 12054332, 12988120, 13520420, 15067915, 16565176, 20706470, 24108664, 27040840, 30135830, 41237281, 41412940, 60271660, 82474562, 82825880, 120543320, 126309467, 164949124, 206186405, 252618934, 262972169, 329898248, 412372810, 505237868, 525944338, 631547335, 824745620, 1010475736, 1051888676, 1263094670, 1314860845, 1649491240, 2103777352, 2526189340, 2629721690, 5052378680, 5259443380, 10518886760, 16041302309, 32082604618, 64165209236, 80206511545, 128330418472, 160413023090, 320826046180, 641652092360]

約数ペア:

[(1, 641652092360), (2, 320826046180), (4, 160413023090), (5, 128330418472), (8, 80206511545), (10, 64165209236), (20, 32082604618), (40, 16041302309), (61, 10518886760), (122, 5259443380), (127, 5052378680), (244, 2629721690), (254, 2526189340), (305, 2103777352), (389, 1649491240), (488, 1314860845), (508, 1263094670), (610, 1051888676), (635, 1010475736), (778, 824745620), (1016, 631547335), (1220, 525944338), (1270, 505237868), (1556, 412372810), (1945, 329898248), (2440, 262972169), (2540, 252618934), (3112, 206186405), (3890, 164949124), (5080, 126309467), (5323, 120543320), (7747, 82825880), (7780, 82474562), (10646, 60271660), (15494, 41412940), (15560, 41237281), (21292, 30135830), (23729, 27040840), (26615, 24108664), (30988, 20706470), (38735, 16565176), (42584, 15067915), (47458, 13520420), (49403, 12988120), (53230, 12054332), (61976, 10353235), (77470, 8282588), (94916, 6760210), (98806, 6494060), (106460, 6027166), (118645, 5408168), (154940, 4141294), (189832, 3380105), (197612, 3247030), (212920, 3013583), (237290, 2704084), (247015, 2597624), (309880, 2070647), (324703, 1976120), (395224, 1623515), (474580, 1352042), (494030, 1298812), (649406, 988060), (676021, 949160)]