21681135780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{115117}}^1$

素因数の和:115245

約数の個数: 96

約数和(自身を含む): 62970466944

約数和(自身を除く): 41289331164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 73, 86, 129, 146, 172, 215, 219, 258, 292, 365, 430, 438, 516, 645, 730, 860, 876, 1095, 1290, 1460, 2190, 2580, 3139, 4380, 6278, 9417, 12556, 15695, 18834, 31390, 37668, 47085, 62780, 94170, 115117, 188340, 230234, 345351, 460468, 575585, 690702, 1151170, 1381404, 1726755, 2302340, 3453510, 4950031, 6907020, 8403541, 9900062, 14850093, 16807082, 19800124, 24750155, 25210623, 29700186, 33614164, 42017705, 49500310, 50421246, 59400372, 74250465, 84035410, 99000620, 100842492, 126053115, 148500930, 168070820, 252106230, 297001860, 361352263, 504212460, 722704526, 1084056789, 1445409052, 1806761315, 2168113578, 3613522630, 4336227156, 5420283945, 7227045260, 10840567890, 21681135780]

約数ペア:

[(1, 21681135780), (2, 10840567890), (3, 7227045260), (4, 5420283945), (5, 4336227156), (6, 3613522630), (10, 2168113578), (12, 1806761315), (15, 1445409052), (20, 1084056789), (30, 722704526), (43, 504212460), (60, 361352263), (73, 297001860), (86, 252106230), (129, 168070820), (146, 148500930), (172, 126053115), (215, 100842492), (219, 99000620), (258, 84035410), (292, 74250465), (365, 59400372), (430, 50421246), (438, 49500310), (516, 42017705), (645, 33614164), (730, 29700186), (860, 25210623), (876, 24750155), (1095, 19800124), (1290, 16807082), (1460, 14850093), (2190, 9900062), (2580, 8403541), (3139, 6907020), (4380, 4950031), (6278, 3453510), (9417, 2302340), (12556, 1726755), (15695, 1381404), (18834, 1151170), (31390, 690702), (37668, 575585), (47085, 460468), (62780, 345351), (94170, 230234), (115117, 188340)]