209872680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:603

約数の個数: 128

約数和(自身を含む): 652924800

約数和(自身を除く): 443052120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 89, 120, 129, 172, 178, 215, 258, 267, 344, 356, 430, 445, 457, 516, 534, 645, 712, 860, 890, 914, 1032, 1068, 1290, 1335, 1371, 1720, 1780, 1828, 2136, 2285, 2580, 2670, 2742, 3560, 3656, 3827, 4570, 5160, 5340, 5484, 6855, 7654, 9140, 10680, 10968, 11481, 13710, 15308, 18280, 19135, 19651, 22962, 27420, 30616, 38270, 39302, 40673, 45924, 54840, 57405, 58953, 76540, 78604, 81346, 91848, 98255, 114810, 117906, 122019, 153080, 157208, 162692, 196510, 203365, 229620, 235812, 244038, 294765, 325384, 393020, 406730, 459240, 471624, 488076, 589530, 610095, 786040, 813460, 976152, 1179060, 1220190, 1626920, 1748939, 2358120, 2440380, 3497878, 4880760, 5246817, 6995756, 8744695, 10493634, 13991512, 17489390, 20987268, 26234085, 34978780, 41974536, 52468170, 69957560, 104936340, 209872680]

約数ペア:

[(1, 209872680), (2, 104936340), (3, 69957560), (4, 52468170), (5, 41974536), (6, 34978780), (8, 26234085), (10, 20987268), (12, 17489390), (15, 13991512), (20, 10493634), (24, 8744695), (30, 6995756), (40, 5246817), (43, 4880760), (60, 3497878), (86, 2440380), (89, 2358120), (120, 1748939), (129, 1626920), (172, 1220190), (178, 1179060), (215, 976152), (258, 813460), (267, 786040), (344, 610095), (356, 589530), (430, 488076), (445, 471624), (457, 459240), (516, 406730), (534, 393020), (645, 325384), (712, 294765), (860, 244038), (890, 235812), (914, 229620), (1032, 203365), (1068, 196510), (1290, 162692), (1335, 157208), (1371, 153080), (1720, 122019), (1780, 117906), (1828, 114810), (2136, 98255), (2285, 91848), (2580, 81346), (2670, 78604), (2742, 76540), (3560, 58953), (3656, 57405), (3827, 54840), (4570, 45924), (5160, 40673), (5340, 39302), (5484, 38270), (6855, 30616), (7654, 27420), (9140, 22962), (10680, 19651), (10968, 19135), (11481, 18280), (13710, 15308)]