1986276760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:917

約数の個数: 128

約数和(自身を含む): 4960932480

約数和(自身を除く): 2974655720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 97, 104, 106, 130, 194, 212, 260, 265, 388, 424, 485, 520, 530, 689, 743, 776, 970, 1060, 1261, 1378, 1486, 1940, 2120, 2522, 2756, 2972, 3445, 3715, 3880, 5044, 5141, 5512, 5944, 6305, 6890, 7430, 9659, 10088, 10282, 12610, 13780, 14860, 19318, 20564, 25220, 25705, 27560, 29720, 38636, 39379, 41128, 48295, 50440, 51410, 66833, 72071, 77272, 78758, 96590, 102820, 133666, 144142, 157516, 193180, 196895, 205640, 267332, 288284, 315032, 334165, 360355, 386360, 393790, 511927, 534664, 576568, 668330, 720710, 787580, 936923, 1023854, 1336660, 1441420, 1575160, 1873846, 2047708, 2559635, 2673320, 2882840, 3747692, 3819763, 4095416, 4684615, 5119270, 7495384, 7639526, 9369230, 10238540, 15279052, 18738460, 19098815, 20477080, 30558104, 37476920, 38197630, 49656919, 76395260, 99313838, 152790520, 198627676, 248284595, 397255352, 496569190, 993138380, 1986276760]

約数ペア:

[(1, 1986276760), (2, 993138380), (4, 496569190), (5, 397255352), (8, 248284595), (10, 198627676), (13, 152790520), (20, 99313838), (26, 76395260), (40, 49656919), (52, 38197630), (53, 37476920), (65, 30558104), (97, 20477080), (104, 19098815), (106, 18738460), (130, 15279052), (194, 10238540), (212, 9369230), (260, 7639526), (265, 7495384), (388, 5119270), (424, 4684615), (485, 4095416), (520, 3819763), (530, 3747692), (689, 2882840), (743, 2673320), (776, 2559635), (970, 2047708), (1060, 1873846), (1261, 1575160), (1378, 1441420), (1486, 1336660), (1940, 1023854), (2120, 936923), (2522, 787580), (2756, 720710), (2972, 668330), (3445, 576568), (3715, 534664), (3880, 511927), (5044, 393790), (5141, 386360), (5512, 360355), (5944, 334165), (6305, 315032), (6890, 288284), (7430, 267332), (9659, 205640), (10088, 196895), (10282, 193180), (12610, 157516), (13780, 144142), (14860, 133666), (19318, 102820), (20564, 96590), (25220, 78758), (25705, 77272), (27560, 72071), (29720, 66833), (38636, 51410), (39379, 50440), (41128, 48295)]