278945940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1087}}^1$

素因数の和:1166

約数の個数: 192

約数和(自身を含む): 982646784

約数和(自身を除く): 703700844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 47, 52, 60, 65, 70, 78, 84, 91, 94, 105, 130, 140, 141, 156, 182, 188, 195, 210, 235, 260, 273, 282, 329, 364, 390, 420, 455, 470, 546, 564, 611, 658, 705, 780, 910, 940, 987, 1087, 1092, 1222, 1316, 1365, 1410, 1645, 1820, 1833, 1974, 2174, 2444, 2730, 2820, 3055, 3261, 3290, 3666, 3948, 4277, 4348, 4935, 5435, 5460, 6110, 6522, 6580, 7332, 7609, 8554, 9165, 9870, 10870, 12220, 12831, 13044, 14131, 15218, 16305, 17108, 18330, 19740, 21385, 21740, 22827, 25662, 28262, 30436, 32610, 36660, 38045, 42393, 42770, 45654, 51089, 51324, 56524, 64155, 65220, 70655, 76090, 84786, 85540, 91308, 98917, 102178, 114135, 128310, 141310, 152180, 153267, 169572, 197834, 204356, 211965, 228270, 255445, 256620, 282620, 296751, 306534, 357623, 395668, 423930, 456540, 494585, 510890, 593502, 613068, 664157, 715246, 766335, 847860, 989170, 1021780, 1072869, 1187004, 1328314, 1430492, 1483755, 1532670, 1788115, 1978340, 1992471, 2145738, 2656628, 2967510, 3065340, 3320785, 3576230, 3984942, 4291476, 4649099, 5364345, 5935020, 6641570, 7152460, 7969884, 9298198, 9962355, 10728690, 13283140, 13947297, 18596396, 19924710, 21457380, 23245495, 27894594, 39849420, 46490990, 55789188, 69736485, 92981980, 139472970, 278945940]

約数ペア:

[(1, 278945940), (2, 139472970), (3, 92981980), (4, 69736485), (5, 55789188), (6, 46490990), (7, 39849420), (10, 27894594), (12, 23245495), (13, 21457380), (14, 19924710), (15, 18596396), (20, 13947297), (21, 13283140), (26, 10728690), (28, 9962355), (30, 9298198), (35, 7969884), (39, 7152460), (42, 6641570), (47, 5935020), (52, 5364345), (60, 4649099), (65, 4291476), (70, 3984942), (78, 3576230), (84, 3320785), (91, 3065340), (94, 2967510), (105, 2656628), (130, 2145738), (140, 1992471), (141, 1978340), (156, 1788115), (182, 1532670), (188, 1483755), (195, 1430492), (210, 1328314), (235, 1187004), (260, 1072869), (273, 1021780), (282, 989170), (329, 847860), (364, 766335), (390, 715246), (420, 664157), (455, 613068), (470, 593502), (546, 510890), (564, 494585), (611, 456540), (658, 423930), (705, 395668), (780, 357623), (910, 306534), (940, 296751), (987, 282620), (1087, 256620), (1092, 255445), (1222, 228270), (1316, 211965), (1365, 204356), (1410, 197834), (1645, 169572), (1820, 153267), (1833, 152180), (1974, 141310), (2174, 128310), (2444, 114135), (2730, 102178), (2820, 98917), (3055, 91308), (3261, 85540), (3290, 84786), (3666, 76090), (3948, 70655), (4277, 65220), (4348, 64155), (4935, 56524), (5435, 51324), (5460, 51089), (6110, 45654), (6522, 42770), (6580, 42393), (7332, 38045), (7609, 36660), (8554, 32610), (9165, 30436), (9870, 28262), (10870, 25662), (12220, 22827), (12831, 21740), (13044, 21385), (14131, 19740), (15218, 18330), (16305, 17108)]