254606720

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:404

約数の個数: 128

約数和(自身を含む): 645684480

約数和(自身を除く): 391077760

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, 313, 320, 328, 410, 496, 620, 626, 640, 656, 820, 992, 1240, 1252, 1271, 1312, 1565, 1640, 1984, 2480, 2504, 2542, 2624, 3130, 3280, 3968, 4960, 5008, 5084, 5248, 6260, 6355, 6560, 9703, 9920, 10016, 10168, 12520, 12710, 12833, 13120, 19406, 19840, 20032, 20336, 25040, 25420, 25666, 26240, 38812, 40064, 40672, 48515, 50080, 50840, 51332, 64165, 77624, 81344, 97030, 100160, 101680, 102664, 128330, 155248, 162688, 194060, 200320, 203360, 205328, 256660, 310496, 388120, 397823, 406720, 410656, 513320, 620992, 776240, 795646, 813440, 821312, 1026640, 1241984, 1552480, 1591292, 1642624, 1989115, 2053280, 3104960, 3182584, 3978230, 4106560, 6209920, 6365168, 7956460, 8213120, 12730336, 15912920, 25460672, 31825840, 50921344, 63651680, 127303360, 254606720]

約数ペア:

[(1, 254606720), (2, 127303360), (4, 63651680), (5, 50921344), (8, 31825840), (10, 25460672), (16, 15912920), (20, 12730336), (31, 8213120), (32, 7956460), (40, 6365168), (41, 6209920), (62, 4106560), (64, 3978230), (80, 3182584), (82, 3104960), (124, 2053280), (128, 1989115), (155, 1642624), (160, 1591292), (164, 1552480), (205, 1241984), (248, 1026640), (310, 821312), (313, 813440), (320, 795646), (328, 776240), (410, 620992), (496, 513320), (620, 410656), (626, 406720), (640, 397823), (656, 388120), (820, 310496), (992, 256660), (1240, 205328), (1252, 203360), (1271, 200320), (1312, 194060), (1565, 162688), (1640, 155248), (1984, 128330), (2480, 102664), (2504, 101680), (2542, 100160), (2624, 97030), (3130, 81344), (3280, 77624), (3968, 64165), (4960, 51332), (5008, 50840), (5084, 50080), (5248, 48515), (6260, 40672), (6355, 40064), (6560, 38812), (9703, 26240), (9920, 25666), (10016, 25420), (10168, 25040), (12520, 20336), (12710, 20032), (12833, 19840), (13120, 19406)]