421991640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{55819}}^1$

素因数の和:55846

約数の個数: 128

約数和(自身を含む): 1607616000

約数和(自身を除く): 1185624360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 55819, 111638, 167457, 223276, 279095, 334914, 390733, 446552, 502371, 558190, 669828, 781466, 837285, 1004742, 1116380, 1172199, 1339656, 1507113, 1562932, 1674570, 1953665, 2009484, 2232760, 2344398, 2511855, 3014226, 3125864, 3349140, 3516597, 3907330, 4018968, 4688796, 5023710, 5860995, 6028452, 6698280, 7033194, 7535565, 7814660, 9377592, 10047420, 10549791, 11721990, 12056904, 14066388, 15071130, 15629320, 17582985, 20094840, 21099582, 23443980, 28132776, 30142260, 35165970, 42199164, 46887960, 52748955, 60284520, 70331940, 84398328, 105497910, 140663880, 210995820, 421991640]

約数ペア:

[(1, 421991640), (2, 210995820), (3, 140663880), (4, 105497910), (5, 84398328), (6, 70331940), (7, 60284520), (8, 52748955), (9, 46887960), (10, 42199164), (12, 35165970), (14, 30142260), (15, 28132776), (18, 23443980), (20, 21099582), (21, 20094840), (24, 17582985), (27, 15629320), (28, 15071130), (30, 14066388), (35, 12056904), (36, 11721990), (40, 10549791), (42, 10047420), (45, 9377592), (54, 7814660), (56, 7535565), (60, 7033194), (63, 6698280), (70, 6028452), (72, 5860995), (84, 5023710), (90, 4688796), (105, 4018968), (108, 3907330), (120, 3516597), (126, 3349140), (135, 3125864), (140, 3014226), (168, 2511855), (180, 2344398), (189, 2232760), (210, 2009484), (216, 1953665), (252, 1674570), (270, 1562932), (280, 1507113), (315, 1339656), (360, 1172199), (378, 1116380), (420, 1004742), (504, 837285), (540, 781466), (630, 669828), (756, 558190), (840, 502371), (945, 446552), (1080, 390733), (1260, 334914), (1512, 279095), (1890, 223276), (2520, 167457), (3780, 111638), (7560, 55819)]