19905060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{571}}^1$

素因数の和:673

約数の個数: 96

約数和(自身を含む): 64576512

約数和(自身を除く): 44671452

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 83, 84, 105, 140, 166, 210, 249, 332, 415, 420, 498, 571, 581, 830, 996, 1142, 1162, 1245, 1660, 1713, 1743, 2284, 2324, 2490, 2855, 2905, 3426, 3486, 3997, 4980, 5710, 5810, 6852, 6972, 7994, 8565, 8715, 11420, 11620, 11991, 15988, 17130, 17430, 19985, 23982, 34260, 34860, 39970, 47393, 47964, 59955, 79940, 94786, 119910, 142179, 189572, 236965, 239820, 284358, 331751, 473930, 568716, 663502, 710895, 947860, 995253, 1327004, 1421790, 1658755, 1990506, 2843580, 3317510, 3981012, 4976265, 6635020, 9952530, 19905060]

約数ペア:

[(1, 19905060), (2, 9952530), (3, 6635020), (4, 4976265), (5, 3981012), (6, 3317510), (7, 2843580), (10, 1990506), (12, 1658755), (14, 1421790), (15, 1327004), (20, 995253), (21, 947860), (28, 710895), (30, 663502), (35, 568716), (42, 473930), (60, 331751), (70, 284358), (83, 239820), (84, 236965), (105, 189572), (140, 142179), (166, 119910), (210, 94786), (249, 79940), (332, 59955), (415, 47964), (420, 47393), (498, 39970), (571, 34860), (581, 34260), (830, 23982), (996, 19985), (1142, 17430), (1162, 17130), (1245, 15988), (1660, 11991), (1713, 11620), (1743, 11420), (2284, 8715), (2324, 8565), (2490, 7994), (2855, 6972), (2905, 6852), (3426, 5810), (3486, 5710), (3997, 4980)]