78337980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:888

約数の個数: 144

約数和(自身を含む): 275358720

約数和(自身を除く): 197020740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 79, 84, 90, 105, 126, 140, 158, 180, 210, 237, 252, 315, 316, 395, 420, 474, 553, 630, 711, 787, 790, 948, 1106, 1185, 1260, 1422, 1574, 1580, 1659, 2212, 2361, 2370, 2765, 2844, 3148, 3318, 3555, 3935, 4722, 4740, 4977, 5509, 5530, 6636, 7083, 7110, 7870, 8295, 9444, 9954, 11018, 11060, 11805, 14166, 14220, 15740, 16527, 16590, 19908, 22036, 23610, 24885, 27545, 28332, 33054, 33180, 35415, 47220, 49581, 49770, 55090, 62173, 66108, 70830, 82635, 99162, 99540, 110180, 124346, 141660, 165270, 186519, 198324, 247905, 248692, 310865, 330540, 373038, 435211, 495810, 559557, 621730, 746076, 870422, 932595, 991620, 1119114, 1243460, 1305633, 1740844, 1865190, 2176055, 2238228, 2611266, 2797785, 3730380, 3916899, 4352110, 5222532, 5595570, 6528165, 7833798, 8704220, 11191140, 13056330, 15667596, 19584495, 26112660, 39168990, 78337980]

約数ペア:

[(1, 78337980), (2, 39168990), (3, 26112660), (4, 19584495), (5, 15667596), (6, 13056330), (7, 11191140), (9, 8704220), (10, 7833798), (12, 6528165), (14, 5595570), (15, 5222532), (18, 4352110), (20, 3916899), (21, 3730380), (28, 2797785), (30, 2611266), (35, 2238228), (36, 2176055), (42, 1865190), (45, 1740844), (60, 1305633), (63, 1243460), (70, 1119114), (79, 991620), (84, 932595), (90, 870422), (105, 746076), (126, 621730), (140, 559557), (158, 495810), (180, 435211), (210, 373038), (237, 330540), (252, 310865), (315, 248692), (316, 247905), (395, 198324), (420, 186519), (474, 165270), (553, 141660), (630, 124346), (711, 110180), (787, 99540), (790, 99162), (948, 82635), (1106, 70830), (1185, 66108), (1260, 62173), (1422, 55090), (1574, 49770), (1580, 49581), (1659, 47220), (2212, 35415), (2361, 33180), (2370, 33054), (2765, 28332), (2844, 27545), (3148, 24885), (3318, 23610), (3555, 22036), (3935, 19908), (4722, 16590), (4740, 16527), (4977, 15740), (5509, 14220), (5530, 14166), (6636, 11805), (7083, 11060), (7110, 11018), (7870, 9954), (8295, 9444)]