21642739900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{241}}^1\times {\mathrm{491}}^1$

素因数の和:836

約数の個数: 144

約数和(自身を含む): 49606824960

約数和(自身を除く): 27964085060

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 59, 62, 100, 118, 124, 155, 236, 241, 295, 310, 482, 491, 590, 620, 775, 964, 982, 1180, 1205, 1475, 1550, 1829, 1964, 2410, 2455, 2950, 3100, 3658, 4820, 4910, 5900, 6025, 7316, 7471, 9145, 9820, 12050, 12275, 14219, 14942, 15221, 18290, 24100, 24550, 28438, 28969, 29884, 30442, 36580, 37355, 45725, 49100, 56876, 57938, 60884, 71095, 74710, 76105, 91450, 115876, 118331, 142190, 144845, 149420, 152210, 182900, 186775, 236662, 284380, 289690, 304420, 355475, 373550, 380525, 440789, 473324, 579380, 591655, 710950, 724225, 747100, 761050, 881578, 898039, 1183310, 1421900, 1448450, 1522100, 1763156, 1796078, 2203945, 2366620, 2896900, 2958275, 3592156, 3668261, 4407890, 4490195, 5916550, 6981529, 7336522, 8815780, 8980390, 11019725, 11833100, 13963058, 14673044, 17960780, 18341305, 22039450, 22450975, 27926116, 34907645, 36682610, 44078900, 44901950, 69815290, 73365220, 89803900, 91706525, 139630580, 174538225, 183413050, 216427399, 349076450, 366826100, 432854798, 698152900, 865709596, 1082136995, 2164273990, 4328547980, 5410684975, 10821369950, 21642739900]

約数ペア:

[(1, 21642739900), (2, 10821369950), (4, 5410684975), (5, 4328547980), (10, 2164273990), (20, 1082136995), (25, 865709596), (31, 698152900), (50, 432854798), (59, 366826100), (62, 349076450), (100, 216427399), (118, 183413050), (124, 174538225), (155, 139630580), (236, 91706525), (241, 89803900), (295, 73365220), (310, 69815290), (482, 44901950), (491, 44078900), (590, 36682610), (620, 34907645), (775, 27926116), (964, 22450975), (982, 22039450), (1180, 18341305), (1205, 17960780), (1475, 14673044), (1550, 13963058), (1829, 11833100), (1964, 11019725), (2410, 8980390), (2455, 8815780), (2950, 7336522), (3100, 6981529), (3658, 5916550), (4820, 4490195), (4910, 4407890), (5900, 3668261), (6025, 3592156), (7316, 2958275), (7471, 2896900), (9145, 2366620), (9820, 2203945), (12050, 1796078), (12275, 1763156), (14219, 1522100), (14942, 1448450), (15221, 1421900), (18290, 1183310), (24100, 898039), (24550, 881578), (28438, 761050), (28969, 747100), (29884, 724225), (30442, 710950), (36580, 591655), (37355, 579380), (45725, 473324), (49100, 440789), (56876, 380525), (57938, 373550), (60884, 355475), (71095, 304420), (74710, 289690), (76105, 284380), (91450, 236662), (115876, 186775), (118331, 182900), (142190, 152210), (144845, 149420)]