647580240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21937}}^1$

素因数の和:21997

約数の個数: 120

約数和(自身を含む): 2227935528

約数和(自身を除く): 1580355288

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 120, 123, 144, 164, 180, 205, 240, 246, 328, 360, 369, 410, 492, 615, 656, 720, 738, 820, 984, 1230, 1476, 1640, 1845, 1968, 2460, 2952, 3280, 3690, 4920, 5904, 7380, 9840, 14760, 21937, 29520, 43874, 65811, 87748, 109685, 131622, 175496, 197433, 219370, 263244, 329055, 350992, 394866, 438740, 526488, 658110, 789732, 877480, 899417, 987165, 1052976, 1316220, 1579464, 1754960, 1798834, 1974330, 2632440, 2698251, 3158928, 3597668, 3948660, 4497085, 5264880, 5396502, 7195336, 7897320, 8094753, 8994170, 10793004, 13491255, 14390672, 15794640, 16189506, 17988340, 21586008, 26982510, 32379012, 35976680, 40473765, 43172016, 53965020, 64758024, 71953360, 80947530, 107930040, 129516048, 161895060, 215860080, 323790120, 647580240]

約数ペア:

[(1, 647580240), (2, 323790120), (3, 215860080), (4, 161895060), (5, 129516048), (6, 107930040), (8, 80947530), (9, 71953360), (10, 64758024), (12, 53965020), (15, 43172016), (16, 40473765), (18, 35976680), (20, 32379012), (24, 26982510), (30, 21586008), (36, 17988340), (40, 16189506), (41, 15794640), (45, 14390672), (48, 13491255), (60, 10793004), (72, 8994170), (80, 8094753), (82, 7897320), (90, 7195336), (120, 5396502), (123, 5264880), (144, 4497085), (164, 3948660), (180, 3597668), (205, 3158928), (240, 2698251), (246, 2632440), (328, 1974330), (360, 1798834), (369, 1754960), (410, 1579464), (492, 1316220), (615, 1052976), (656, 987165), (720, 899417), (738, 877480), (820, 789732), (984, 658110), (1230, 526488), (1476, 438740), (1640, 394866), (1845, 350992), (1968, 329055), (2460, 263244), (2952, 219370), (3280, 197433), (3690, 175496), (4920, 131622), (5904, 109685), (7380, 87748), (9840, 65811), (14760, 43874), (21937, 29520)]