19872240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2671}}^1$

素因数の和:2718

約数の個数: 80

約数和(自身を含む): 63614976

約数和(自身を除く): 43742736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2671, 3720, 5342, 7440, 8013, 10684, 13355, 16026, 21368, 26710, 32052, 40065, 42736, 53420, 64104, 80130, 82801, 106840, 128208, 160260, 165602, 213680, 248403, 320520, 331204, 414005, 496806, 641040, 662408, 828010, 993612, 1242015, 1324816, 1656020, 1987224, 2484030, 3312040, 3974448, 4968060, 6624080, 9936120, 19872240]

約数ペア:

[(1, 19872240), (2, 9936120), (3, 6624080), (4, 4968060), (5, 3974448), (6, 3312040), (8, 2484030), (10, 1987224), (12, 1656020), (15, 1324816), (16, 1242015), (20, 993612), (24, 828010), (30, 662408), (31, 641040), (40, 496806), (48, 414005), (60, 331204), (62, 320520), (80, 248403), (93, 213680), (120, 165602), (124, 160260), (155, 128208), (186, 106840), (240, 82801), (248, 80130), (310, 64104), (372, 53420), (465, 42736), (496, 40065), (620, 32052), (744, 26710), (930, 21368), (1240, 16026), (1488, 13355), (1860, 10684), (2480, 8013), (2671, 7440), (3720, 5342)]