17451980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 46362624

約数和(自身を除く): 28910644

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 52, 65, 70, 86, 91, 130, 140, 172, 182, 215, 223, 260, 301, 364, 430, 446, 455, 559, 602, 860, 892, 910, 1115, 1118, 1204, 1505, 1561, 1820, 2230, 2236, 2795, 2899, 3010, 3122, 3913, 4460, 5590, 5798, 6020, 6244, 7805, 7826, 9589, 11180, 11596, 14495, 15610, 15652, 19178, 19565, 20293, 28990, 31220, 38356, 39130, 40586, 47945, 57980, 67123, 78260, 81172, 95890, 101465, 124657, 134246, 191780, 202930, 249314, 268492, 335615, 405860, 498628, 623285, 671230, 872599, 1246570, 1342460, 1745198, 2493140, 3490396, 4362995, 8725990, 17451980]

約数ペア:

[(1, 17451980), (2, 8725990), (4, 4362995), (5, 3490396), (7, 2493140), (10, 1745198), (13, 1342460), (14, 1246570), (20, 872599), (26, 671230), (28, 623285), (35, 498628), (43, 405860), (52, 335615), (65, 268492), (70, 249314), (86, 202930), (91, 191780), (130, 134246), (140, 124657), (172, 101465), (182, 95890), (215, 81172), (223, 78260), (260, 67123), (301, 57980), (364, 47945), (430, 40586), (446, 39130), (455, 38356), (559, 31220), (602, 28990), (860, 20293), (892, 19565), (910, 19178), (1115, 15652), (1118, 15610), (1204, 14495), (1505, 11596), (1561, 11180), (1820, 9589), (2230, 7826), (2236, 7805), (2795, 6244), (2899, 6020), (3010, 5798), (3122, 5590), (3913, 4460)]