280243951920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20485669}}^1$

素因数の和:20485707

約数の個数: 120

約数和(自身を含む): 990687001200

約数和(自身を除く): 710443049280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 20485669, 40971338, 61457007, 81942676, 102428345, 122914014, 163885352, 184371021, 204856690, 245828028, 307285035, 327770704, 368742042, 389227711, 409713380, 491656056, 614570070, 737484084, 778455422, 819426760, 921855105, 983312112, 1167683133, 1229140140, 1474968168, 1556910844, 1638853520, 1843710210, 1946138555, 2335366266, 2458280280, 2949936336, 3113821688, 3503049399, 3687420420, 3892277110, 4670732532, 4916560560, 5838415665, 6227643376, 7006098798, 7374840840, 7784554220, 9341465064, 11676831330, 14012197596, 14749681680, 15569108440, 17515246995, 18682930128, 23353662660, 28024395192, 31138216880, 35030493990, 46707325320, 56048790384, 70060987980, 93414650640, 140121975960, 280243951920]

約数ペア:

[(1, 280243951920), (2, 140121975960), (3, 93414650640), (4, 70060987980), (5, 56048790384), (6, 46707325320), (8, 35030493990), (9, 31138216880), (10, 28024395192), (12, 23353662660), (15, 18682930128), (16, 17515246995), (18, 15569108440), (19, 14749681680), (20, 14012197596), (24, 11676831330), (30, 9341465064), (36, 7784554220), (38, 7374840840), (40, 7006098798), (45, 6227643376), (48, 5838415665), (57, 4916560560), (60, 4670732532), (72, 3892277110), (76, 3687420420), (80, 3503049399), (90, 3113821688), (95, 2949936336), (114, 2458280280), (120, 2335366266), (144, 1946138555), (152, 1843710210), (171, 1638853520), (180, 1556910844), (190, 1474968168), (228, 1229140140), (240, 1167683133), (285, 983312112), (304, 921855105), (342, 819426760), (360, 778455422), (380, 737484084), (456, 614570070), (570, 491656056), (684, 409713380), (720, 389227711), (760, 368742042), (855, 327770704), (912, 307285035), (1140, 245828028), (1368, 204856690), (1520, 184371021), (1710, 163885352), (2280, 122914014), (2736, 102428345), (3420, 81942676), (4560, 61457007), (6840, 40971338), (13680, 20485669)]