16918980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:333

約数の個数: 96

約数和(自身を含む): 51744000

約数和(自身を除く): 34825020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 109, 130, 156, 195, 199, 218, 260, 327, 390, 398, 436, 545, 597, 654, 780, 796, 995, 1090, 1194, 1308, 1417, 1635, 1990, 2180, 2388, 2587, 2834, 2985, 3270, 3980, 4251, 5174, 5668, 5970, 6540, 7085, 7761, 8502, 10348, 11940, 12935, 14170, 15522, 17004, 21255, 21691, 25870, 28340, 31044, 38805, 42510, 43382, 51740, 65073, 77610, 85020, 86764, 108455, 130146, 155220, 216910, 260292, 281983, 325365, 433820, 563966, 650730, 845949, 1127932, 1301460, 1409915, 1691898, 2819830, 3383796, 4229745, 5639660, 8459490, 16918980]

約数ペア:

[(1, 16918980), (2, 8459490), (3, 5639660), (4, 4229745), (5, 3383796), (6, 2819830), (10, 1691898), (12, 1409915), (13, 1301460), (15, 1127932), (20, 845949), (26, 650730), (30, 563966), (39, 433820), (52, 325365), (60, 281983), (65, 260292), (78, 216910), (109, 155220), (130, 130146), (156, 108455), (195, 86764), (199, 85020), (218, 77610), (260, 65073), (327, 51740), (390, 43382), (398, 42510), (436, 38805), (545, 31044), (597, 28340), (654, 25870), (780, 21691), (796, 21255), (995, 17004), (1090, 15522), (1194, 14170), (1308, 12935), (1417, 11940), (1635, 10348), (1990, 8502), (2180, 7761), (2388, 7085), (2587, 6540), (2834, 5970), (2985, 5668), (3270, 5174), (3980, 4251)]