31091940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:450

約数の個数: 144

約数和(自身を含む): 105670656

約数和(自身を除く): 74578716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 246, 330, 369, 383, 396, 410, 451, 492, 495, 615, 660, 738, 766, 820, 902, 990, 1149, 1230, 1353, 1476, 1532, 1804, 1845, 1915, 1980, 2255, 2298, 2460, 2706, 3447, 3690, 3830, 4059, 4213, 4510, 4596, 5412, 5745, 6765, 6894, 7380, 7660, 8118, 8426, 9020, 11490, 12639, 13530, 13788, 15703, 16236, 16852, 17235, 20295, 21065, 22980, 25278, 27060, 31406, 34470, 37917, 40590, 42130, 47109, 50556, 62812, 63195, 68940, 75834, 78515, 81180, 84260, 94218, 126390, 141327, 151668, 157030, 172733, 188436, 189585, 235545, 252780, 282654, 314060, 345466, 379170, 471090, 518199, 565308, 690932, 706635, 758340, 863665, 942180, 1036398, 1413270, 1554597, 1727330, 2072796, 2590995, 2826540, 3109194, 3454660, 5181990, 6218388, 7772985, 10363980, 15545970, 31091940]

約数ペア:

[(1, 31091940), (2, 15545970), (3, 10363980), (4, 7772985), (5, 6218388), (6, 5181990), (9, 3454660), (10, 3109194), (11, 2826540), (12, 2590995), (15, 2072796), (18, 1727330), (20, 1554597), (22, 1413270), (30, 1036398), (33, 942180), (36, 863665), (41, 758340), (44, 706635), (45, 690932), (55, 565308), (60, 518199), (66, 471090), (82, 379170), (90, 345466), (99, 314060), (110, 282654), (123, 252780), (132, 235545), (164, 189585), (165, 188436), (180, 172733), (198, 157030), (205, 151668), (220, 141327), (246, 126390), (330, 94218), (369, 84260), (383, 81180), (396, 78515), (410, 75834), (451, 68940), (492, 63195), (495, 62812), (615, 50556), (660, 47109), (738, 42130), (766, 40590), (820, 37917), (902, 34470), (990, 31406), (1149, 27060), (1230, 25278), (1353, 22980), (1476, 21065), (1532, 20295), (1804, 17235), (1845, 16852), (1915, 16236), (1980, 15703), (2255, 13788), (2298, 13530), (2460, 12639), (2706, 11490), (3447, 9020), (3690, 8426), (3830, 8118), (4059, 7660), (4213, 7380), (4510, 6894), (4596, 6765), (5412, 5745)]