19923540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 51200940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 41, 42, 52, 60, 65, 70, 78, 82, 84, 89, 91, 105, 123, 130, 140, 156, 164, 178, 182, 195, 205, 210, 246, 260, 267, 273, 287, 356, 364, 390, 410, 420, 445, 455, 492, 533, 534, 546, 574, 615, 623, 780, 820, 861, 890, 910, 1066, 1068, 1092, 1148, 1157, 1230, 1246, 1335, 1365, 1435, 1599, 1722, 1780, 1820, 1869, 2132, 2314, 2460, 2492, 2665, 2670, 2730, 2870, 3115, 3198, 3444, 3471, 3649, 3731, 3738, 4305, 4628, 5330, 5340, 5460, 5740, 5785, 6230, 6396, 6942, 7298, 7462, 7476, 7995, 8099, 8610, 9345, 10660, 10947, 11193, 11570, 12460, 13884, 14596, 14924, 15990, 16198, 17220, 17355, 18245, 18655, 18690, 21894, 22386, 23140, 24297, 25543, 31980, 32396, 34710, 36490, 37310, 37380, 40495, 43788, 44772, 47437, 48594, 51086, 54735, 55965, 69420, 72980, 74620, 76629, 80990, 94874, 97188, 102172, 109470, 111930, 121485, 127715, 142311, 153258, 161980, 189748, 218940, 223860, 237185, 242970, 255430, 284622, 306516, 332059, 383145, 474370, 485940, 510860, 569244, 664118, 711555, 766290, 948740, 996177, 1328236, 1423110, 1532580, 1660295, 1992354, 2846220, 3320590, 3984708, 4980885, 6641180, 9961770, 19923540]

約数ペア:

[(1, 19923540), (2, 9961770), (3, 6641180), (4, 4980885), (5, 3984708), (6, 3320590), (7, 2846220), (10, 1992354), (12, 1660295), (13, 1532580), (14, 1423110), (15, 1328236), (20, 996177), (21, 948740), (26, 766290), (28, 711555), (30, 664118), (35, 569244), (39, 510860), (41, 485940), (42, 474370), (52, 383145), (60, 332059), (65, 306516), (70, 284622), (78, 255430), (82, 242970), (84, 237185), (89, 223860), (91, 218940), (105, 189748), (123, 161980), (130, 153258), (140, 142311), (156, 127715), (164, 121485), (178, 111930), (182, 109470), (195, 102172), (205, 97188), (210, 94874), (246, 80990), (260, 76629), (267, 74620), (273, 72980), (287, 69420), (356, 55965), (364, 54735), (390, 51086), (410, 48594), (420, 47437), (445, 44772), (455, 43788), (492, 40495), (533, 37380), (534, 37310), (546, 36490), (574, 34710), (615, 32396), (623, 31980), (780, 25543), (820, 24297), (861, 23140), (890, 22386), (910, 21894), (1066, 18690), (1068, 18655), (1092, 18245), (1148, 17355), (1157, 17220), (1230, 16198), (1246, 15990), (1335, 14924), (1365, 14596), (1435, 13884), (1599, 12460), (1722, 11570), (1780, 11193), (1820, 10947), (1869, 10660), (2132, 9345), (2314, 8610), (2460, 8099), (2492, 7995), (2665, 7476), (2670, 7462), (2730, 7298), (2870, 6942), (3115, 6396), (3198, 6230), (3444, 5785), (3471, 5740), (3649, 5460), (3731, 5340), (3738, 5330), (4305, 4628)]