19650540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 192

約数和(自身を含む): 69995520

約数和(自身を除く): 50344980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 59, 60, 61, 65, 70, 78, 84, 91, 105, 118, 122, 130, 140, 156, 177, 182, 183, 195, 210, 236, 244, 260, 273, 295, 305, 354, 364, 366, 390, 413, 420, 427, 455, 546, 590, 610, 708, 732, 767, 780, 793, 826, 854, 885, 910, 915, 1092, 1180, 1220, 1239, 1281, 1365, 1534, 1586, 1652, 1708, 1770, 1820, 1830, 2065, 2135, 2301, 2379, 2478, 2562, 2730, 3068, 3172, 3540, 3599, 3660, 3835, 3965, 4130, 4270, 4602, 4758, 4956, 5124, 5369, 5460, 5551, 6195, 6405, 7198, 7670, 7930, 8260, 8540, 9204, 9516, 10738, 10797, 11102, 11505, 11895, 12390, 12810, 14396, 15340, 15860, 16107, 16653, 17995, 21476, 21594, 22204, 23010, 23790, 24780, 25193, 25620, 26845, 27755, 32214, 33306, 35990, 43188, 46020, 46787, 47580, 50386, 53690, 53985, 55510, 64428, 66612, 71980, 75579, 80535, 83265, 93574, 100772, 107380, 107970, 111020, 125965, 140361, 151158, 161070, 166530, 187148, 215940, 233935, 251930, 280722, 302316, 322140, 327509, 333060, 377895, 467870, 503860, 561444, 655018, 701805, 755790, 935740, 982527, 1310036, 1403610, 1511580, 1637545, 1965054, 2807220, 3275090, 3930108, 4912635, 6550180, 9825270, 19650540]

約数ペア:

[(1, 19650540), (2, 9825270), (3, 6550180), (4, 4912635), (5, 3930108), (6, 3275090), (7, 2807220), (10, 1965054), (12, 1637545), (13, 1511580), (14, 1403610), (15, 1310036), (20, 982527), (21, 935740), (26, 755790), (28, 701805), (30, 655018), (35, 561444), (39, 503860), (42, 467870), (52, 377895), (59, 333060), (60, 327509), (61, 322140), (65, 302316), (70, 280722), (78, 251930), (84, 233935), (91, 215940), (105, 187148), (118, 166530), (122, 161070), (130, 151158), (140, 140361), (156, 125965), (177, 111020), (182, 107970), (183, 107380), (195, 100772), (210, 93574), (236, 83265), (244, 80535), (260, 75579), (273, 71980), (295, 66612), (305, 64428), (354, 55510), (364, 53985), (366, 53690), (390, 50386), (413, 47580), (420, 46787), (427, 46020), (455, 43188), (546, 35990), (590, 33306), (610, 32214), (708, 27755), (732, 26845), (767, 25620), (780, 25193), (793, 24780), (826, 23790), (854, 23010), (885, 22204), (910, 21594), (915, 21476), (1092, 17995), (1180, 16653), (1220, 16107), (1239, 15860), (1281, 15340), (1365, 14396), (1534, 12810), (1586, 12390), (1652, 11895), (1708, 11505), (1770, 11102), (1820, 10797), (1830, 10738), (2065, 9516), (2135, 9204), (2301, 8540), (2379, 8260), (2478, 7930), (2562, 7670), (2730, 7198), (3068, 6405), (3172, 6195), (3540, 5551), (3599, 5460), (3660, 5369), (3835, 5124), (3965, 4956), (4130, 4758), (4270, 4602)]