18820821990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{227387}}^1$

素因数の和:227517

約数の個数: 64

約数和(自身を含む): 47151175680

約数和(自身を除く): 28330353690

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 89, 93, 155, 178, 186, 267, 310, 445, 465, 534, 890, 930, 1335, 2670, 2759, 5518, 8277, 13795, 16554, 27590, 41385, 82770, 227387, 454774, 682161, 1136935, 1364322, 2273870, 3410805, 6821610, 7048997, 14097994, 20237443, 21146991, 35244985, 40474886, 42293982, 60712329, 70489970, 101187215, 105734955, 121424658, 202374430, 211469910, 303561645, 607123290, 627360733, 1254721466, 1882082199, 3136803665, 3764164398, 6273607330, 9410410995, 18820821990]

約数ペア:

[(1, 18820821990), (2, 9410410995), (3, 6273607330), (5, 3764164398), (6, 3136803665), (10, 1882082199), (15, 1254721466), (30, 627360733), (31, 607123290), (62, 303561645), (89, 211469910), (93, 202374430), (155, 121424658), (178, 105734955), (186, 101187215), (267, 70489970), (310, 60712329), (445, 42293982), (465, 40474886), (534, 35244985), (890, 21146991), (930, 20237443), (1335, 14097994), (2670, 7048997), (2759, 6821610), (5518, 3410805), (8277, 2273870), (13795, 1364322), (16554, 1136935), (27590, 682161), (41385, 454774), (82770, 227387)]