26620020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:630

約数の個数: 144

約数和(自身を含む): 94942848

約数和(自身を除く): 68322828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 420, 444, 518, 555, 571, 630, 666, 740, 777, 1036, 1110, 1142, 1260, 1295, 1332, 1554, 1665, 1713, 2220, 2284, 2331, 2590, 2855, 3108, 3330, 3426, 3885, 3997, 4662, 5139, 5180, 5710, 6660, 6852, 7770, 7994, 8565, 9324, 10278, 11420, 11655, 11991, 15540, 15988, 17130, 19985, 20556, 21127, 23310, 23982, 25695, 34260, 35973, 39970, 42254, 46620, 47964, 51390, 59955, 63381, 71946, 79940, 84508, 102780, 105635, 119910, 126762, 143892, 147889, 179865, 190143, 211270, 239820, 253524, 295778, 316905, 359730, 380286, 422540, 443667, 591556, 633810, 719460, 739445, 760572, 887334, 950715, 1267620, 1331001, 1478890, 1774668, 1901430, 2218335, 2662002, 2957780, 3802860, 4436670, 5324004, 6655005, 8873340, 13310010, 26620020]

約数ペア:

[(1, 26620020), (2, 13310010), (3, 8873340), (4, 6655005), (5, 5324004), (6, 4436670), (7, 3802860), (9, 2957780), (10, 2662002), (12, 2218335), (14, 1901430), (15, 1774668), (18, 1478890), (20, 1331001), (21, 1267620), (28, 950715), (30, 887334), (35, 760572), (36, 739445), (37, 719460), (42, 633810), (45, 591556), (60, 443667), (63, 422540), (70, 380286), (74, 359730), (84, 316905), (90, 295778), (105, 253524), (111, 239820), (126, 211270), (140, 190143), (148, 179865), (180, 147889), (185, 143892), (210, 126762), (222, 119910), (252, 105635), (259, 102780), (315, 84508), (333, 79940), (370, 71946), (420, 63381), (444, 59955), (518, 51390), (555, 47964), (571, 46620), (630, 42254), (666, 39970), (740, 35973), (777, 34260), (1036, 25695), (1110, 23982), (1142, 23310), (1260, 21127), (1295, 20556), (1332, 19985), (1554, 17130), (1665, 15988), (1713, 15540), (2220, 11991), (2284, 11655), (2331, 11420), (2590, 10278), (2855, 9324), (3108, 8565), (3330, 7994), (3426, 7770), (3885, 6852), (3997, 6660), (4662, 5710), (5139, 5180)]