31138380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1901}}^1$

素因数の和:1936

約数の個数: 144

約数和(自身を含む): 116311104

約数和(自身を除く): 85172724

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 1901, 2340, 2730, 3276, 3802, 4095, 5460, 5703, 7604, 8190, 9505, 11406, 13307, 16380, 17109, 19010, 22812, 24713, 26614, 28515, 34218, 38020, 39921, 49426, 53228, 57030, 66535, 68436, 74139, 79842, 85545, 98852, 114060, 119763, 123565, 133070, 148278, 159684, 171090, 172991, 199605, 222417, 239526, 247130, 266140, 296556, 342180, 345982, 370695, 399210, 444834, 479052, 494260, 518973, 598815, 691964, 741390, 798420, 864955, 889668, 1037946, 1112085, 1197630, 1482780, 1556919, 1729910, 2075892, 2224170, 2395260, 2594865, 3113838, 3459820, 4448340, 5189730, 6227676, 7784595, 10379460, 15569190, 31138380]

約数ペア:

[(1, 31138380), (2, 15569190), (3, 10379460), (4, 7784595), (5, 6227676), (6, 5189730), (7, 4448340), (9, 3459820), (10, 3113838), (12, 2594865), (13, 2395260), (14, 2224170), (15, 2075892), (18, 1729910), (20, 1556919), (21, 1482780), (26, 1197630), (28, 1112085), (30, 1037946), (35, 889668), (36, 864955), (39, 798420), (42, 741390), (45, 691964), (52, 598815), (60, 518973), (63, 494260), (65, 479052), (70, 444834), (78, 399210), (84, 370695), (90, 345982), (91, 342180), (105, 296556), (117, 266140), (126, 247130), (130, 239526), (140, 222417), (156, 199605), (180, 172991), (182, 171090), (195, 159684), (210, 148278), (234, 133070), (252, 123565), (260, 119763), (273, 114060), (315, 98852), (364, 85545), (390, 79842), (420, 74139), (455, 68436), (468, 66535), (546, 57030), (585, 53228), (630, 49426), (780, 39921), (819, 38020), (910, 34218), (1092, 28515), (1170, 26614), (1260, 24713), (1365, 22812), (1638, 19010), (1820, 17109), (1901, 16380), (2340, 13307), (2730, 11406), (3276, 9505), (3802, 8190), (4095, 7604), (5460, 5703)]