28568980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 69672960

約数和(自身を除く): 41103980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 59, 62, 71, 110, 118, 124, 142, 155, 220, 236, 284, 295, 310, 341, 355, 590, 620, 649, 682, 710, 781, 1180, 1298, 1364, 1420, 1562, 1705, 1829, 2201, 2596, 3124, 3245, 3410, 3658, 3905, 4189, 4402, 6490, 6820, 7316, 7810, 8378, 8804, 9145, 11005, 12980, 15620, 16756, 18290, 20119, 20945, 22010, 24211, 36580, 40238, 41890, 44020, 46079, 48422, 80476, 83780, 92158, 96844, 100595, 121055, 129859, 184316, 201190, 230395, 242110, 259718, 402380, 460790, 484220, 519436, 649295, 921580, 1298590, 1428449, 2597180, 2856898, 5713796, 7142245, 14284490, 28568980]

約数ペア:

[(1, 28568980), (2, 14284490), (4, 7142245), (5, 5713796), (10, 2856898), (11, 2597180), (20, 1428449), (22, 1298590), (31, 921580), (44, 649295), (55, 519436), (59, 484220), (62, 460790), (71, 402380), (110, 259718), (118, 242110), (124, 230395), (142, 201190), (155, 184316), (220, 129859), (236, 121055), (284, 100595), (295, 96844), (310, 92158), (341, 83780), (355, 80476), (590, 48422), (620, 46079), (649, 44020), (682, 41890), (710, 40238), (781, 36580), (1180, 24211), (1298, 22010), (1364, 20945), (1420, 20119), (1562, 18290), (1705, 16756), (1829, 15620), (2201, 12980), (2596, 11005), (3124, 9145), (3245, 8804), (3410, 8378), (3658, 7810), (3905, 7316), (4189, 6820), (4402, 6490)]