19159980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^5\times {\mathrm{19}}^1$

素因数の和:66

約数の個数: 144

約数和(自身を含む): 65882880

約数和(自身を除く): 46722900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 343, 380, 399, 420, 490, 532, 570, 588, 665, 686, 735, 798, 931, 980, 1029, 1140, 1330, 1372, 1470, 1596, 1715, 1862, 1995, 2058, 2401, 2660, 2793, 2940, 3430, 3724, 3990, 4116, 4655, 4802, 5145, 5586, 6517, 6860, 7203, 7980, 9310, 9604, 10290, 11172, 12005, 13034, 13965, 14406, 16807, 18620, 19551, 20580, 24010, 26068, 27930, 28812, 32585, 33614, 36015, 39102, 45619, 48020, 50421, 55860, 65170, 67228, 72030, 78204, 84035, 91238, 97755, 100842, 130340, 136857, 144060, 168070, 182476, 195510, 201684, 228095, 252105, 273714, 319333, 336140, 391020, 456190, 504210, 547428, 638666, 684285, 912380, 957999, 1008420, 1277332, 1368570, 1596665, 1915998, 2737140, 3193330, 3831996, 4789995, 6386660, 9579990, 19159980]

約数ペア:

[(1, 19159980), (2, 9579990), (3, 6386660), (4, 4789995), (5, 3831996), (6, 3193330), (7, 2737140), (10, 1915998), (12, 1596665), (14, 1368570), (15, 1277332), (19, 1008420), (20, 957999), (21, 912380), (28, 684285), (30, 638666), (35, 547428), (38, 504210), (42, 456190), (49, 391020), (57, 336140), (60, 319333), (70, 273714), (76, 252105), (84, 228095), (95, 201684), (98, 195510), (105, 182476), (114, 168070), (133, 144060), (140, 136857), (147, 130340), (190, 100842), (196, 97755), (210, 91238), (228, 84035), (245, 78204), (266, 72030), (285, 67228), (294, 65170), (343, 55860), (380, 50421), (399, 48020), (420, 45619), (490, 39102), (532, 36015), (570, 33614), (588, 32585), (665, 28812), (686, 27930), (735, 26068), (798, 24010), (931, 20580), (980, 19551), (1029, 18620), (1140, 16807), (1330, 14406), (1372, 13965), (1470, 13034), (1596, 12005), (1715, 11172), (1862, 10290), (1995, 9604), (2058, 9310), (2401, 7980), (2660, 7203), (2793, 6860), (2940, 6517), (3430, 5586), (3724, 5145), (3990, 4802), (4116, 4655)]