81388860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11399}}^1$

素因数の和:11435

約数の個数: 96

約数和(自身を含む): 275788800

約数和(自身を除く): 194399940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 3570, 7140, 11399, 22798, 34197, 45596, 56995, 68394, 79793, 113990, 136788, 159586, 170985, 193783, 227980, 239379, 319172, 341970, 387566, 398965, 478758, 581349, 683940, 775132, 797930, 957516, 968915, 1162698, 1196895, 1356481, 1595860, 1937830, 2325396, 2393790, 2712962, 2906745, 3875660, 4069443, 4787580, 5425924, 5813490, 6782405, 8138886, 11626980, 13564810, 16277772, 20347215, 27129620, 40694430, 81388860]

約数ペア:

[(1, 81388860), (2, 40694430), (3, 27129620), (4, 20347215), (5, 16277772), (6, 13564810), (7, 11626980), (10, 8138886), (12, 6782405), (14, 5813490), (15, 5425924), (17, 4787580), (20, 4069443), (21, 3875660), (28, 2906745), (30, 2712962), (34, 2393790), (35, 2325396), (42, 1937830), (51, 1595860), (60, 1356481), (68, 1196895), (70, 1162698), (84, 968915), (85, 957516), (102, 797930), (105, 775132), (119, 683940), (140, 581349), (170, 478758), (204, 398965), (210, 387566), (238, 341970), (255, 319172), (340, 239379), (357, 227980), (420, 193783), (476, 170985), (510, 159586), (595, 136788), (714, 113990), (1020, 79793), (1190, 68394), (1428, 56995), (1785, 45596), (2380, 34197), (3570, 22798), (7140, 11399)]