31278390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:374

約数の個数: 128

約数和(自身を含む): 92316672

約数和(自身を除く): 61038282

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 23, 26, 30, 33, 39, 46, 55, 65, 66, 69, 78, 110, 115, 130, 138, 143, 165, 195, 230, 253, 286, 299, 317, 330, 345, 390, 429, 506, 598, 634, 690, 715, 759, 858, 897, 951, 1265, 1430, 1495, 1518, 1585, 1794, 1902, 2145, 2530, 2990, 3170, 3289, 3487, 3795, 4121, 4290, 4485, 4755, 6578, 6974, 7291, 7590, 8242, 8970, 9510, 9867, 10461, 12363, 14582, 16445, 17435, 19734, 20605, 20922, 21873, 24726, 32890, 34870, 36455, 41210, 43746, 45331, 49335, 52305, 61815, 72910, 80201, 90662, 94783, 98670, 104610, 109365, 123630, 135993, 160402, 189566, 218730, 226655, 240603, 271986, 284349, 401005, 453310, 473915, 481206, 568698, 679965, 802010, 947830, 1042613, 1203015, 1359930, 1421745, 2085226, 2406030, 2843490, 3127839, 5213065, 6255678, 10426130, 15639195, 31278390]

約数ペア:

[(1, 31278390), (2, 15639195), (3, 10426130), (5, 6255678), (6, 5213065), (10, 3127839), (11, 2843490), (13, 2406030), (15, 2085226), (22, 1421745), (23, 1359930), (26, 1203015), (30, 1042613), (33, 947830), (39, 802010), (46, 679965), (55, 568698), (65, 481206), (66, 473915), (69, 453310), (78, 401005), (110, 284349), (115, 271986), (130, 240603), (138, 226655), (143, 218730), (165, 189566), (195, 160402), (230, 135993), (253, 123630), (286, 109365), (299, 104610), (317, 98670), (330, 94783), (345, 90662), (390, 80201), (429, 72910), (506, 61815), (598, 52305), (634, 49335), (690, 45331), (715, 43746), (759, 41210), (858, 36455), (897, 34870), (951, 32890), (1265, 24726), (1430, 21873), (1495, 20922), (1518, 20605), (1585, 19734), (1794, 17435), (1902, 16445), (2145, 14582), (2530, 12363), (2990, 10461), (3170, 9867), (3289, 9510), (3487, 8970), (3795, 8242), (4121, 7590), (4290, 7291), (4485, 6974), (4755, 6578)]