31966620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 106178688

約数和(自身を除く): 74212068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 83, 84, 98, 105, 131, 140, 147, 166, 196, 210, 245, 249, 262, 294, 332, 393, 415, 420, 490, 498, 524, 581, 588, 655, 735, 786, 830, 917, 980, 996, 1162, 1245, 1310, 1470, 1572, 1660, 1743, 1834, 1965, 2324, 2490, 2620, 2751, 2905, 2940, 3486, 3668, 3930, 4067, 4585, 4980, 5502, 5810, 6419, 6972, 7860, 8134, 8715, 9170, 10873, 11004, 11620, 12201, 12838, 13755, 16268, 17430, 18340, 19257, 20335, 21746, 24402, 25676, 27510, 32095, 32619, 34860, 38514, 40670, 43492, 48804, 54365, 55020, 61005, 64190, 65238, 76111, 77028, 81340, 96285, 108730, 122010, 128380, 130476, 152222, 163095, 192570, 217460, 228333, 244020, 304444, 326190, 380555, 385140, 456666, 532777, 652380, 761110, 913332, 1065554, 1141665, 1522220, 1598331, 2131108, 2283330, 2663885, 3196662, 4566660, 5327770, 6393324, 7991655, 10655540, 15983310, 31966620]

約数ペア:

[(1, 31966620), (2, 15983310), (3, 10655540), (4, 7991655), (5, 6393324), (6, 5327770), (7, 4566660), (10, 3196662), (12, 2663885), (14, 2283330), (15, 2131108), (20, 1598331), (21, 1522220), (28, 1141665), (30, 1065554), (35, 913332), (42, 761110), (49, 652380), (60, 532777), (70, 456666), (83, 385140), (84, 380555), (98, 326190), (105, 304444), (131, 244020), (140, 228333), (147, 217460), (166, 192570), (196, 163095), (210, 152222), (245, 130476), (249, 128380), (262, 122010), (294, 108730), (332, 96285), (393, 81340), (415, 77028), (420, 76111), (490, 65238), (498, 64190), (524, 61005), (581, 55020), (588, 54365), (655, 48804), (735, 43492), (786, 40670), (830, 38514), (917, 34860), (980, 32619), (996, 32095), (1162, 27510), (1245, 25676), (1310, 24402), (1470, 21746), (1572, 20335), (1660, 19257), (1743, 18340), (1834, 17430), (1965, 16268), (2324, 13755), (2490, 12838), (2620, 12201), (2751, 11620), (2905, 11004), (2940, 10873), (3486, 9170), (3668, 8715), (3930, 8134), (4067, 7860), (4585, 6972), (4980, 6419), (5502, 5810)]