256885980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19373}}^1$

素因数の和:19415

約数の個数: 96

約数和(自身を含む): 820217664

約数和(自身を除く): 563331684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 19373, 38746, 58119, 77492, 96865, 116238, 193730, 232476, 251849, 290595, 329341, 387460, 503698, 581190, 658682, 755547, 988023, 1007396, 1162380, 1259245, 1317364, 1511094, 1646705, 1976046, 2518490, 3022188, 3293410, 3777735, 3952092, 4281433, 4940115, 5036980, 6586820, 7555470, 8562866, 9880230, 12844299, 15110940, 17125732, 19760460, 21407165, 25688598, 42814330, 51377196, 64221495, 85628660, 128442990, 256885980]

約数ペア:

[(1, 256885980), (2, 128442990), (3, 85628660), (4, 64221495), (5, 51377196), (6, 42814330), (10, 25688598), (12, 21407165), (13, 19760460), (15, 17125732), (17, 15110940), (20, 12844299), (26, 9880230), (30, 8562866), (34, 7555470), (39, 6586820), (51, 5036980), (52, 4940115), (60, 4281433), (65, 3952092), (68, 3777735), (78, 3293410), (85, 3022188), (102, 2518490), (130, 1976046), (156, 1646705), (170, 1511094), (195, 1317364), (204, 1259245), (221, 1162380), (255, 1007396), (260, 988023), (340, 755547), (390, 658682), (442, 581190), (510, 503698), (663, 387460), (780, 329341), (884, 290595), (1020, 251849), (1105, 232476), (1326, 193730), (2210, 116238), (2652, 96865), (3315, 77492), (4420, 58119), (6630, 38746), (13260, 19373)]