19898460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:265

約数の個数: 120

約数和(自身を含む): 63667296

約数和(自身を除く): 43768836

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 81, 90, 108, 135, 142, 162, 173, 180, 213, 270, 284, 324, 346, 355, 405, 426, 519, 540, 639, 692, 710, 810, 852, 865, 1038, 1065, 1278, 1420, 1557, 1620, 1730, 1917, 2076, 2130, 2556, 2595, 3114, 3195, 3460, 3834, 4260, 4671, 5190, 5751, 6228, 6390, 7668, 7785, 9342, 9585, 10380, 11502, 12283, 12780, 14013, 15570, 18684, 19170, 23004, 23355, 24566, 28026, 28755, 31140, 36849, 38340, 46710, 49132, 56052, 57510, 61415, 70065, 73698, 93420, 110547, 115020, 122830, 140130, 147396, 184245, 221094, 245660, 280260, 331641, 368490, 442188, 552735, 663282, 736980, 994923, 1105470, 1326564, 1658205, 1989846, 2210940, 3316410, 3979692, 4974615, 6632820, 9949230, 19898460]

約数ペア:

[(1, 19898460), (2, 9949230), (3, 6632820), (4, 4974615), (5, 3979692), (6, 3316410), (9, 2210940), (10, 1989846), (12, 1658205), (15, 1326564), (18, 1105470), (20, 994923), (27, 736980), (30, 663282), (36, 552735), (45, 442188), (54, 368490), (60, 331641), (71, 280260), (81, 245660), (90, 221094), (108, 184245), (135, 147396), (142, 140130), (162, 122830), (173, 115020), (180, 110547), (213, 93420), (270, 73698), (284, 70065), (324, 61415), (346, 57510), (355, 56052), (405, 49132), (426, 46710), (519, 38340), (540, 36849), (639, 31140), (692, 28755), (710, 28026), (810, 24566), (852, 23355), (865, 23004), (1038, 19170), (1065, 18684), (1278, 15570), (1420, 14013), (1557, 12780), (1620, 12283), (1730, 11502), (1917, 10380), (2076, 9585), (2130, 9342), (2556, 7785), (2595, 7668), (3114, 6390), (3195, 6228), (3460, 5751), (3834, 5190), (4260, 4671)]