278020920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2093

約数の個数: 128

約数和(自身を含む): 892800000

約数和(自身を除く): 614779080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 61, 76, 95, 114, 120, 122, 152, 183, 190, 228, 244, 285, 305, 366, 380, 456, 488, 570, 610, 732, 760, 915, 1140, 1159, 1220, 1464, 1830, 1999, 2280, 2318, 2440, 3477, 3660, 3998, 4636, 5795, 5997, 6954, 7320, 7996, 9272, 9995, 11590, 11994, 13908, 15992, 17385, 19990, 23180, 23988, 27816, 29985, 34770, 37981, 39980, 46360, 47976, 59970, 69540, 75962, 79960, 113943, 119940, 121939, 139080, 151924, 189905, 227886, 239880, 243878, 303848, 365817, 379810, 455772, 487756, 569715, 609695, 731634, 759620, 911544, 975512, 1139430, 1219390, 1463268, 1519240, 1829085, 2278860, 2316841, 2438780, 2926536, 3658170, 4557720, 4633682, 4877560, 6950523, 7316340, 9267364, 11584205, 13901046, 14632680, 18534728, 23168410, 27802092, 34752615, 46336820, 55604184, 69505230, 92673640, 139010460, 278020920]

約数ペア:

[(1, 278020920), (2, 139010460), (3, 92673640), (4, 69505230), (5, 55604184), (6, 46336820), (8, 34752615), (10, 27802092), (12, 23168410), (15, 18534728), (19, 14632680), (20, 13901046), (24, 11584205), (30, 9267364), (38, 7316340), (40, 6950523), (57, 4877560), (60, 4633682), (61, 4557720), (76, 3658170), (95, 2926536), (114, 2438780), (120, 2316841), (122, 2278860), (152, 1829085), (183, 1519240), (190, 1463268), (228, 1219390), (244, 1139430), (285, 975512), (305, 911544), (366, 759620), (380, 731634), (456, 609695), (488, 569715), (570, 487756), (610, 455772), (732, 379810), (760, 365817), (915, 303848), (1140, 243878), (1159, 239880), (1220, 227886), (1464, 189905), (1830, 151924), (1999, 139080), (2280, 121939), (2318, 119940), (2440, 113943), (3477, 79960), (3660, 75962), (3998, 69540), (4636, 59970), (5795, 47976), (5997, 46360), (6954, 39980), (7320, 37981), (7996, 34770), (9272, 29985), (9995, 27816), (11590, 23988), (11994, 23180), (13908, 19990), (15992, 17385)]