279563620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 726243840

約数和(自身を除く): 446680220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 79, 92, 98, 115, 140, 157, 158, 161, 196, 230, 245, 314, 316, 322, 395, 460, 490, 553, 628, 644, 785, 790, 805, 980, 1099, 1106, 1127, 1570, 1580, 1610, 1817, 2198, 2212, 2254, 2765, 3140, 3220, 3611, 3634, 3871, 4396, 4508, 5495, 5530, 5635, 7222, 7268, 7693, 7742, 9085, 10990, 11060, 11270, 12403, 12719, 14444, 15386, 15484, 18055, 18170, 19355, 21980, 22540, 24806, 25277, 25438, 30772, 36110, 36340, 38465, 38710, 49612, 50554, 50876, 62015, 63595, 72220, 76930, 77420, 86821, 89033, 101108, 124030, 126385, 127190, 153860, 173642, 176939, 178066, 248060, 252770, 254380, 285269, 347284, 353878, 356132, 434105, 445165, 505540, 570538, 607747, 707756, 868210, 884695, 890330, 1141076, 1215494, 1426345, 1736420, 1769390, 1780660, 1996883, 2430988, 2852690, 3038735, 3538780, 3993766, 5705380, 6077470, 7987532, 9984415, 12154940, 13978181, 19968830, 27956362, 39937660, 55912724, 69890905, 139781810, 279563620]

約数ペア:

[(1, 279563620), (2, 139781810), (4, 69890905), (5, 55912724), (7, 39937660), (10, 27956362), (14, 19968830), (20, 13978181), (23, 12154940), (28, 9984415), (35, 7987532), (46, 6077470), (49, 5705380), (70, 3993766), (79, 3538780), (92, 3038735), (98, 2852690), (115, 2430988), (140, 1996883), (157, 1780660), (158, 1769390), (161, 1736420), (196, 1426345), (230, 1215494), (245, 1141076), (314, 890330), (316, 884695), (322, 868210), (395, 707756), (460, 607747), (490, 570538), (553, 505540), (628, 445165), (644, 434105), (785, 356132), (790, 353878), (805, 347284), (980, 285269), (1099, 254380), (1106, 252770), (1127, 248060), (1570, 178066), (1580, 176939), (1610, 173642), (1817, 153860), (2198, 127190), (2212, 126385), (2254, 124030), (2765, 101108), (3140, 89033), (3220, 86821), (3611, 77420), (3634, 76930), (3871, 72220), (4396, 63595), (4508, 62015), (5495, 50876), (5530, 50554), (5635, 49612), (7222, 38710), (7268, 38465), (7693, 36340), (7742, 36110), (9085, 30772), (10990, 25438), (11060, 25277), (11270, 24806), (12403, 22540), (12719, 21980), (14444, 19355), (15386, 18170), (15484, 18055)]