19554800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:151

約数の個数: 120

約数和(自身を含む): 51663360

約数和(自身を除く): 32108560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 38, 40, 50, 62, 76, 80, 83, 95, 100, 124, 152, 155, 166, 190, 200, 248, 304, 310, 332, 380, 400, 415, 475, 496, 589, 620, 664, 760, 775, 830, 950, 1178, 1240, 1328, 1520, 1550, 1577, 1660, 1900, 2075, 2356, 2480, 2573, 2945, 3100, 3154, 3320, 3800, 4150, 4712, 5146, 5890, 6200, 6308, 6640, 7600, 7885, 8300, 9424, 10292, 11780, 12400, 12616, 12865, 14725, 15770, 16600, 20584, 23560, 25232, 25730, 29450, 31540, 33200, 39425, 41168, 47120, 48887, 51460, 58900, 63080, 64325, 78850, 97774, 102920, 117800, 126160, 128650, 157700, 195548, 205840, 235600, 244435, 257300, 315400, 391096, 488870, 514600, 630800, 782192, 977740, 1029200, 1222175, 1955480, 2444350, 3910960, 4888700, 9777400, 19554800]

約数ペア:

[(1, 19554800), (2, 9777400), (4, 4888700), (5, 3910960), (8, 2444350), (10, 1955480), (16, 1222175), (19, 1029200), (20, 977740), (25, 782192), (31, 630800), (38, 514600), (40, 488870), (50, 391096), (62, 315400), (76, 257300), (80, 244435), (83, 235600), (95, 205840), (100, 195548), (124, 157700), (152, 128650), (155, 126160), (166, 117800), (190, 102920), (200, 97774), (248, 78850), (304, 64325), (310, 63080), (332, 58900), (380, 51460), (400, 48887), (415, 47120), (475, 41168), (496, 39425), (589, 33200), (620, 31540), (664, 29450), (760, 25730), (775, 25232), (830, 23560), (950, 20584), (1178, 16600), (1240, 15770), (1328, 14725), (1520, 12865), (1550, 12616), (1577, 12400), (1660, 11780), (1900, 10292), (2075, 9424), (2356, 8300), (2480, 7885), (2573, 7600), (2945, 6640), (3100, 6308), (3154, 6200), (3320, 5890), (3800, 5146), (4150, 4712)]