20712510

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 160

約数和(自身を含む): 68789952

約数和(自身を除く): 48077442

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 54, 63, 65, 70, 78, 81, 90, 91, 105, 117, 126, 130, 135, 162, 182, 189, 195, 210, 234, 270, 273, 281, 315, 351, 378, 390, 405, 455, 546, 562, 567, 585, 630, 702, 810, 819, 843, 910, 945, 1053, 1134, 1170, 1365, 1405, 1638, 1686, 1755, 1890, 1967, 2106, 2457, 2529, 2730, 2810, 2835, 3510, 3653, 3934, 4095, 4215, 4914, 5058, 5265, 5670, 5901, 7306, 7371, 7587, 8190, 8430, 9835, 10530, 10959, 11802, 12285, 12645, 14742, 15174, 17703, 18265, 19670, 21918, 22761, 24570, 25290, 25571, 29505, 32877, 35406, 36530, 36855, 37935, 45522, 51142, 53109, 54795, 59010, 65754, 73710, 75870, 76713, 88515, 98631, 106218, 109590, 113805, 127855, 153426, 159327, 164385, 177030, 197262, 227610, 230139, 255710, 265545, 295893, 318654, 328770, 383565, 460278, 493155, 531090, 591786, 690417, 767130, 796635, 986310, 1150695, 1380834, 1479465, 1593270, 2071251, 2301390, 2958930, 3452085, 4142502, 6904170, 10356255, 20712510]

約数ペア:

[(1, 20712510), (2, 10356255), (3, 6904170), (5, 4142502), (6, 3452085), (7, 2958930), (9, 2301390), (10, 2071251), (13, 1593270), (14, 1479465), (15, 1380834), (18, 1150695), (21, 986310), (26, 796635), (27, 767130), (30, 690417), (35, 591786), (39, 531090), (42, 493155), (45, 460278), (54, 383565), (63, 328770), (65, 318654), (70, 295893), (78, 265545), (81, 255710), (90, 230139), (91, 227610), (105, 197262), (117, 177030), (126, 164385), (130, 159327), (135, 153426), (162, 127855), (182, 113805), (189, 109590), (195, 106218), (210, 98631), (234, 88515), (270, 76713), (273, 75870), (281, 73710), (315, 65754), (351, 59010), (378, 54795), (390, 53109), (405, 51142), (455, 45522), (546, 37935), (562, 36855), (567, 36530), (585, 35406), (630, 32877), (702, 29505), (810, 25571), (819, 25290), (843, 24570), (910, 22761), (945, 21918), (1053, 19670), (1134, 18265), (1170, 17703), (1365, 15174), (1405, 14742), (1638, 12645), (1686, 12285), (1755, 11802), (1890, 10959), (1967, 10530), (2106, 9835), (2457, 8430), (2529, 8190), (2730, 7587), (2810, 7371), (2835, 7306), (3510, 5901), (3653, 5670), (3934, 5265), (4095, 5058), (4215, 4914)]