18951660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1$

素因数の和:137

約数の個数: 216

約数和(自身を含む): 71940960

約数和(自身を除く): 52989300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 89, 90, 91, 105, 117, 126, 130, 140, 156, 169, 178, 180, 182, 195, 210, 234, 252, 260, 267, 273, 315, 338, 356, 364, 390, 420, 445, 455, 468, 507, 534, 546, 585, 623, 630, 676, 780, 801, 819, 845, 890, 910, 1014, 1068, 1092, 1157, 1170, 1183, 1246, 1260, 1335, 1365, 1521, 1602, 1638, 1690, 1780, 1820, 1869, 2028, 2314, 2340, 2366, 2492, 2535, 2670, 2730, 3042, 3115, 3204, 3276, 3380, 3471, 3549, 3738, 4005, 4095, 4628, 4732, 5070, 5340, 5460, 5607, 5785, 5915, 6084, 6230, 6942, 7098, 7476, 7605, 8010, 8099, 8190, 9345, 10140, 10413, 10647, 11214, 11570, 11830, 12460, 13884, 14196, 15041, 15210, 16020, 16198, 16380, 17355, 17745, 18690, 20826, 21294, 22428, 23140, 23660, 24297, 28035, 30082, 30420, 32396, 34710, 35490, 37380, 40495, 41652, 42588, 45123, 48594, 52065, 53235, 56070, 60164, 69420, 70980, 72891, 75205, 80990, 90246, 97188, 104130, 105287, 106470, 112140, 121485, 135369, 145782, 150410, 161980, 180492, 208260, 210574, 212940, 225615, 242970, 270738, 291564, 300820, 315861, 364455, 421148, 451230, 485940, 526435, 541476, 631722, 676845, 728910, 902460, 947583, 1052870, 1263444, 1353690, 1457820, 1579305, 1895166, 2105740, 2707380, 3158610, 3790332, 4737915, 6317220, 9475830, 18951660]

約数ペア:

[(1, 18951660), (2, 9475830), (3, 6317220), (4, 4737915), (5, 3790332), (6, 3158610), (7, 2707380), (9, 2105740), (10, 1895166), (12, 1579305), (13, 1457820), (14, 1353690), (15, 1263444), (18, 1052870), (20, 947583), (21, 902460), (26, 728910), (28, 676845), (30, 631722), (35, 541476), (36, 526435), (39, 485940), (42, 451230), (45, 421148), (52, 364455), (60, 315861), (63, 300820), (65, 291564), (70, 270738), (78, 242970), (84, 225615), (89, 212940), (90, 210574), (91, 208260), (105, 180492), (117, 161980), (126, 150410), (130, 145782), (140, 135369), (156, 121485), (169, 112140), (178, 106470), (180, 105287), (182, 104130), (195, 97188), (210, 90246), (234, 80990), (252, 75205), (260, 72891), (267, 70980), (273, 69420), (315, 60164), (338, 56070), (356, 53235), (364, 52065), (390, 48594), (420, 45123), (445, 42588), (455, 41652), (468, 40495), (507, 37380), (534, 35490), (546, 34710), (585, 32396), (623, 30420), (630, 30082), (676, 28035), (780, 24297), (801, 23660), (819, 23140), (845, 22428), (890, 21294), (910, 20826), (1014, 18690), (1068, 17745), (1092, 17355), (1157, 16380), (1170, 16198), (1183, 16020), (1246, 15210), (1260, 15041), (1335, 14196), (1365, 13884), (1521, 12460), (1602, 11830), (1638, 11570), (1690, 11214), (1780, 10647), (1820, 10413), (1869, 10140), (2028, 9345), (2314, 8190), (2340, 8099), (2366, 8010), (2492, 7605), (2535, 7476), (2670, 7098), (2730, 6942), (3042, 6230), (3115, 6084), (3204, 5915), (3276, 5785), (3380, 5607), (3471, 5460), (3549, 5340), (3738, 5070), (4005, 4732), (4095, 4628)]