509213440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:406

約数の個数: 144

約数和(自身を含む): 1293901056

約数和(自身を除く): 784687616

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, 256, 310, 313, 320, 328, 410, 496, 620, 626, 640, 656, 820, 992, 1240, 1252, 1271, 1280, 1312, 1565, 1640, 1984, 2480, 2504, 2542, 2624, 3130, 3280, 3968, 4960, 5008, 5084, 5248, 6260, 6355, 6560, 7936, 9703, 9920, 10016, 10168, 10496, 12520, 12710, 12833, 13120, 19406, 19840, 20032, 20336, 25040, 25420, 25666, 26240, 38812, 39680, 40064, 40672, 48515, 50080, 50840, 51332, 52480, 64165, 77624, 80128, 81344, 97030, 100160, 101680, 102664, 128330, 155248, 162688, 194060, 200320, 203360, 205328, 256660, 310496, 325376, 388120, 397823, 400640, 406720, 410656, 513320, 620992, 776240, 795646, 813440, 821312, 1026640, 1241984, 1552480, 1591292, 1626880, 1642624, 1989115, 2053280, 2483968, 3104960, 3182584, 3285248, 3978230, 4106560, 6209920, 6365168, 7956460, 8213120, 12419840, 12730336, 15912920, 16426240, 25460672, 31825840, 50921344, 63651680, 101842688, 127303360, 254606720, 509213440]

約数ペア:

[(1, 509213440), (2, 254606720), (4, 127303360), (5, 101842688), (8, 63651680), (10, 50921344), (16, 31825840), (20, 25460672), (31, 16426240), (32, 15912920), (40, 12730336), (41, 12419840), (62, 8213120), (64, 7956460), (80, 6365168), (82, 6209920), (124, 4106560), (128, 3978230), (155, 3285248), (160, 3182584), (164, 3104960), (205, 2483968), (248, 2053280), (256, 1989115), (310, 1642624), (313, 1626880), (320, 1591292), (328, 1552480), (410, 1241984), (496, 1026640), (620, 821312), (626, 813440), (640, 795646), (656, 776240), (820, 620992), (992, 513320), (1240, 410656), (1252, 406720), (1271, 400640), (1280, 397823), (1312, 388120), (1565, 325376), (1640, 310496), (1984, 256660), (2480, 205328), (2504, 203360), (2542, 200320), (2624, 194060), (3130, 162688), (3280, 155248), (3968, 128330), (4960, 102664), (5008, 101680), (5084, 100160), (5248, 97030), (6260, 81344), (6355, 80128), (6560, 77624), (7936, 64165), (9703, 52480), (9920, 51332), (10016, 50840), (10168, 50080), (10496, 48515), (12520, 40672), (12710, 40064), (12833, 39680), (13120, 38812), (19406, 26240), (19840, 25666), (20032, 25420), (20336, 25040)]