18895380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6427}}^1$

素因数の和:6453

約数の個数: 72

約数和(自身を含む): 61554528

約数和(自身を除く): 42659148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6427, 12854, 19281, 25708, 32135, 38562, 44989, 64270, 77124, 89978, 96405, 128540, 134967, 179956, 192810, 224945, 269934, 314923, 385620, 449890, 539868, 629846, 674835, 899780, 944769, 1259692, 1349670, 1574615, 1889538, 2699340, 3149230, 3779076, 4723845, 6298460, 9447690, 18895380]

約数ペア:

[(1, 18895380), (2, 9447690), (3, 6298460), (4, 4723845), (5, 3779076), (6, 3149230), (7, 2699340), (10, 1889538), (12, 1574615), (14, 1349670), (15, 1259692), (20, 944769), (21, 899780), (28, 674835), (30, 629846), (35, 539868), (42, 449890), (49, 385620), (60, 314923), (70, 269934), (84, 224945), (98, 192810), (105, 179956), (140, 134967), (147, 128540), (196, 96405), (210, 89978), (245, 77124), (294, 64270), (420, 44989), (490, 38562), (588, 32135), (735, 25708), (980, 19281), (1470, 12854), (2940, 6427)]