31761540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 144

約数和(自身を含む): 104569920

約数和(自身を除く): 72808380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 171, 180, 185, 190, 222, 228, 251, 285, 333, 342, 370, 380, 444, 502, 555, 570, 666, 684, 703, 740, 753, 855, 1004, 1110, 1140, 1255, 1332, 1406, 1506, 1665, 1710, 2109, 2220, 2259, 2510, 2812, 3012, 3330, 3420, 3515, 3765, 4218, 4518, 4769, 5020, 6327, 6660, 7030, 7530, 8436, 9036, 9287, 9538, 10545, 11295, 12654, 14060, 14307, 15060, 18574, 19076, 21090, 22590, 23845, 25308, 27861, 28614, 31635, 37148, 42180, 42921, 45180, 46435, 47690, 55722, 57228, 63270, 71535, 83583, 85842, 92870, 95380, 111444, 126540, 139305, 143070, 167166, 171684, 176453, 185740, 214605, 278610, 286140, 334332, 352906, 417915, 429210, 529359, 557220, 705812, 835830, 858420, 882265, 1058718, 1588077, 1671660, 1764530, 2117436, 2646795, 3176154, 3529060, 5293590, 6352308, 7940385, 10587180, 15880770, 31761540]

約数ペア:

[(1, 31761540), (2, 15880770), (3, 10587180), (4, 7940385), (5, 6352308), (6, 5293590), (9, 3529060), (10, 3176154), (12, 2646795), (15, 2117436), (18, 1764530), (19, 1671660), (20, 1588077), (30, 1058718), (36, 882265), (37, 858420), (38, 835830), (45, 705812), (57, 557220), (60, 529359), (74, 429210), (76, 417915), (90, 352906), (95, 334332), (111, 286140), (114, 278610), (148, 214605), (171, 185740), (180, 176453), (185, 171684), (190, 167166), (222, 143070), (228, 139305), (251, 126540), (285, 111444), (333, 95380), (342, 92870), (370, 85842), (380, 83583), (444, 71535), (502, 63270), (555, 57228), (570, 55722), (666, 47690), (684, 46435), (703, 45180), (740, 42921), (753, 42180), (855, 37148), (1004, 31635), (1110, 28614), (1140, 27861), (1255, 25308), (1332, 23845), (1406, 22590), (1506, 21090), (1665, 19076), (1710, 18574), (2109, 15060), (2220, 14307), (2259, 14060), (2510, 12654), (2812, 11295), (3012, 10545), (3330, 9538), (3420, 9287), (3515, 9036), (3765, 8436), (4218, 7530), (4518, 7030), (4769, 6660), (5020, 6327)]