256880760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1847}}^1$

素因数の和:1941

約数の個数: 128

約数和(自身を含む): 824947200

約数和(自身を除く): 568066440

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, 1847, 2280, 2318, 2440, 3477, 3660, 3694, 4636, 5541, 5795, 6954, 7320, 7388, 9235, 9272, 11082, 11590, 13908, 14776, 17385, 18470, 22164, 23180, 27705, 27816, 34770, 35093, 36940, 44328, 46360, 55410, 69540, 70186, 73880, 105279, 110820, 112667, 139080, 140372, 175465, 210558, 221640, 225334, 280744, 338001, 350930, 421116, 450668, 526395, 563335, 676002, 701860, 842232, 901336, 1052790, 1126670, 1352004, 1403720, 1690005, 2105580, 2140673, 2253340, 2704008, 3380010, 4211160, 4281346, 4506680, 6422019, 6760020, 8562692, 10703365, 12844038, 13520040, 17125384, 21406730, 25688076, 32110095, 42813460, 51376152, 64220190, 85626920, 128440380, 256880760]

約数ペア:

[(1, 256880760), (2, 128440380), (3, 85626920), (4, 64220190), (5, 51376152), (6, 42813460), (8, 32110095), (10, 25688076), (12, 21406730), (15, 17125384), (19, 13520040), (20, 12844038), (24, 10703365), (30, 8562692), (38, 6760020), (40, 6422019), (57, 4506680), (60, 4281346), (61, 4211160), (76, 3380010), (95, 2704008), (114, 2253340), (120, 2140673), (122, 2105580), (152, 1690005), (183, 1403720), (190, 1352004), (228, 1126670), (244, 1052790), (285, 901336), (305, 842232), (366, 701860), (380, 676002), (456, 563335), (488, 526395), (570, 450668), (610, 421116), (732, 350930), (760, 338001), (915, 280744), (1140, 225334), (1159, 221640), (1220, 210558), (1464, 175465), (1830, 140372), (1847, 139080), (2280, 112667), (2318, 110820), (2440, 105279), (3477, 73880), (3660, 70186), (3694, 69540), (4636, 55410), (5541, 46360), (5795, 44328), (6954, 36940), (7320, 35093), (7388, 34770), (9235, 27816), (9272, 27705), (11082, 23180), (11590, 22164), (13908, 18470), (14776, 17385)]