20180632960

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{24809}}^1$

素因数の和:24900

約数の個数: 128

約数和(自身を含む): 51017299200

約数和(自身を除く): 30836666240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 128, 155, 160, 164, 205, 248, 310, 320, 328, 410, 496, 620, 640, 656, 820, 992, 1240, 1271, 1312, 1640, 1984, 2480, 2542, 2624, 3280, 3968, 4960, 5084, 5248, 6355, 6560, 9920, 10168, 12710, 13120, 19840, 20336, 24809, 25420, 26240, 40672, 49618, 50840, 81344, 99236, 101680, 124045, 162688, 198472, 203360, 248090, 396944, 406720, 496180, 769079, 793888, 813440, 992360, 1017169, 1538158, 1587776, 1984720, 2034338, 3076316, 3175552, 3845395, 3969440, 4068676, 5085845, 6152632, 7690790, 7938880, 8137352, 10171690, 12305264, 15381580, 15877760, 16274704, 20343380, 24610528, 30763160, 31532239, 32549408, 40686760, 49221056, 61526320, 63064478, 65098816, 81373520, 98442112, 123052640, 126128956, 130197632, 157661195, 162747040, 246105280, 252257912, 315322390, 325494080, 492210560, 504515824, 630644780, 650988160, 1009031648, 1261289560, 2018063296, 2522579120, 4036126592, 5045158240, 10090316480, 20180632960]

約数ペア:

[(1, 20180632960), (2, 10090316480), (4, 5045158240), (5, 4036126592), (8, 2522579120), (10, 2018063296), (16, 1261289560), (20, 1009031648), (31, 650988160), (32, 630644780), (40, 504515824), (41, 492210560), (62, 325494080), (64, 315322390), (80, 252257912), (82, 246105280), (124, 162747040), (128, 157661195), (155, 130197632), (160, 126128956), (164, 123052640), (205, 98442112), (248, 81373520), (310, 65098816), (320, 63064478), (328, 61526320), (410, 49221056), (496, 40686760), (620, 32549408), (640, 31532239), (656, 30763160), (820, 24610528), (992, 20343380), (1240, 16274704), (1271, 15877760), (1312, 15381580), (1640, 12305264), (1984, 10171690), (2480, 8137352), (2542, 7938880), (2624, 7690790), (3280, 6152632), (3968, 5085845), (4960, 4068676), (5084, 3969440), (5248, 3845395), (6355, 3175552), (6560, 3076316), (9920, 2034338), (10168, 1984720), (12710, 1587776), (13120, 1538158), (19840, 1017169), (20336, 992360), (24809, 813440), (25420, 793888), (26240, 769079), (40672, 496180), (49618, 406720), (50840, 396944), (81344, 248090), (99236, 203360), (101680, 198472), (124045, 162688)]