138335820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:460

約数の個数: 144

約数和(自身を含む): 454745088

約数和(自身を除く): 316409268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 211, 223, 245, 294, 420, 422, 446, 490, 588, 633, 669, 735, 844, 892, 980, 1055, 1115, 1266, 1338, 1470, 1477, 1561, 2110, 2230, 2532, 2676, 2940, 2954, 3122, 3165, 3345, 4220, 4431, 4460, 4683, 5908, 6244, 6330, 6690, 7385, 7805, 8862, 9366, 10339, 10927, 12660, 13380, 14770, 15610, 17724, 18732, 20678, 21854, 22155, 23415, 29540, 31017, 31220, 32781, 41356, 43708, 44310, 46830, 47053, 51695, 54635, 62034, 65562, 88620, 93660, 94106, 103390, 109270, 124068, 131124, 141159, 155085, 163905, 188212, 206780, 218540, 235265, 282318, 310170, 327810, 329371, 470530, 564636, 620340, 655620, 658742, 705795, 941060, 988113, 1317484, 1411590, 1646855, 1976226, 2305597, 2823180, 3293710, 3952452, 4611194, 4940565, 6587420, 6916791, 9222388, 9881130, 11527985, 13833582, 19762260, 23055970, 27667164, 34583955, 46111940, 69167910, 138335820]

約数ペア:

[(1, 138335820), (2, 69167910), (3, 46111940), (4, 34583955), (5, 27667164), (6, 23055970), (7, 19762260), (10, 13833582), (12, 11527985), (14, 9881130), (15, 9222388), (20, 6916791), (21, 6587420), (28, 4940565), (30, 4611194), (35, 3952452), (42, 3293710), (49, 2823180), (60, 2305597), (70, 1976226), (84, 1646855), (98, 1411590), (105, 1317484), (140, 988113), (147, 941060), (196, 705795), (210, 658742), (211, 655620), (223, 620340), (245, 564636), (294, 470530), (420, 329371), (422, 327810), (446, 310170), (490, 282318), (588, 235265), (633, 218540), (669, 206780), (735, 188212), (844, 163905), (892, 155085), (980, 141159), (1055, 131124), (1115, 124068), (1266, 109270), (1338, 103390), (1470, 94106), (1477, 93660), (1561, 88620), (2110, 65562), (2230, 62034), (2532, 54635), (2676, 51695), (2940, 47053), (2954, 46830), (3122, 44310), (3165, 43708), (3345, 41356), (4220, 32781), (4431, 31220), (4460, 31017), (4683, 29540), (5908, 23415), (6244, 22155), (6330, 21854), (6690, 20678), (7385, 18732), (7805, 17724), (8862, 15610), (9366, 14770), (10339, 13380), (10927, 12660)]