20921024280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13410913}}^1$

素因数の和:13410940

約数の個数: 64

約数和(自身を含む): 67591006560

約数和(自身を除く): 46669982280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13410913, 26821826, 40232739, 53643652, 67054565, 80465478, 107287304, 134109130, 160930956, 174341869, 201163695, 268218260, 321861912, 348683738, 402327390, 523025607, 536436520, 697367476, 804654780, 871709345, 1046051214, 1394734952, 1609309560, 1743418690, 2092102428, 2615128035, 3486837380, 4184204856, 5230256070, 6973674760, 10460512140, 20921024280]

約数ペア:

[(1, 20921024280), (2, 10460512140), (3, 6973674760), (4, 5230256070), (5, 4184204856), (6, 3486837380), (8, 2615128035), (10, 2092102428), (12, 1743418690), (13, 1609309560), (15, 1394734952), (20, 1046051214), (24, 871709345), (26, 804654780), (30, 697367476), (39, 536436520), (40, 523025607), (52, 402327390), (60, 348683738), (65, 321861912), (78, 268218260), (104, 201163695), (120, 174341869), (130, 160930956), (156, 134109130), (195, 107287304), (260, 80465478), (312, 67054565), (390, 53643652), (520, 40232739), (780, 26821826), (1560, 13410913)]