281399880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1487}}^1$

素因数の和:1603

約数の個数: 128

約数和(自身を含む): 899942400

約数和(自身を除く): 618542520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 83, 95, 114, 120, 152, 166, 190, 228, 249, 285, 332, 380, 415, 456, 498, 570, 664, 760, 830, 996, 1140, 1245, 1487, 1577, 1660, 1992, 2280, 2490, 2974, 3154, 3320, 4461, 4731, 4980, 5948, 6308, 7435, 7885, 8922, 9462, 9960, 11896, 12616, 14870, 15770, 17844, 18924, 22305, 23655, 28253, 29740, 31540, 35688, 37848, 44610, 47310, 56506, 59480, 63080, 84759, 89220, 94620, 113012, 123421, 141265, 169518, 178440, 189240, 226024, 246842, 282530, 339036, 370263, 423795, 493684, 565060, 617105, 678072, 740526, 847590, 987368, 1130120, 1234210, 1481052, 1695180, 1851315, 2344999, 2468420, 2962104, 3390360, 3702630, 4689998, 4936840, 7034997, 7405260, 9379996, 11724995, 14069994, 14810520, 18759992, 23449990, 28139988, 35174985, 46899980, 56279976, 70349970, 93799960, 140699940, 281399880]

約数ペア:

[(1, 281399880), (2, 140699940), (3, 93799960), (4, 70349970), (5, 56279976), (6, 46899980), (8, 35174985), (10, 28139988), (12, 23449990), (15, 18759992), (19, 14810520), (20, 14069994), (24, 11724995), (30, 9379996), (38, 7405260), (40, 7034997), (57, 4936840), (60, 4689998), (76, 3702630), (83, 3390360), (95, 2962104), (114, 2468420), (120, 2344999), (152, 1851315), (166, 1695180), (190, 1481052), (228, 1234210), (249, 1130120), (285, 987368), (332, 847590), (380, 740526), (415, 678072), (456, 617105), (498, 565060), (570, 493684), (664, 423795), (760, 370263), (830, 339036), (996, 282530), (1140, 246842), (1245, 226024), (1487, 189240), (1577, 178440), (1660, 169518), (1992, 141265), (2280, 123421), (2490, 113012), (2974, 94620), (3154, 89220), (3320, 84759), (4461, 63080), (4731, 59480), (4980, 56506), (5948, 47310), (6308, 44610), (7435, 37848), (7885, 35688), (8922, 31540), (9462, 29740), (9960, 28253), (11896, 23655), (12616, 22305), (14870, 18924), (15770, 17844)]