20751900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:360

約数の個数: 144

約数和(自身を含む): 68683104

約数和(自身を除く): 47931204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 25, 26, 30, 34, 39, 50, 51, 52, 60, 65, 68, 75, 78, 85, 100, 102, 130, 150, 156, 170, 195, 204, 221, 255, 260, 300, 313, 325, 340, 390, 425, 442, 510, 626, 650, 663, 780, 850, 884, 939, 975, 1020, 1105, 1252, 1275, 1300, 1326, 1565, 1700, 1878, 1950, 2210, 2550, 2652, 3130, 3315, 3756, 3900, 4069, 4420, 4695, 5100, 5321, 5525, 6260, 6630, 7825, 8138, 9390, 10642, 11050, 12207, 13260, 15650, 15963, 16276, 16575, 18780, 20345, 21284, 22100, 23475, 24414, 26605, 31300, 31926, 33150, 40690, 46950, 48828, 53210, 61035, 63852, 66300, 69173, 79815, 81380, 93900, 101725, 106420, 122070, 133025, 138346, 159630, 203450, 207519, 244140, 266050, 276692, 305175, 319260, 345865, 399075, 406900, 415038, 532100, 610350, 691730, 798150, 830076, 1037595, 1220700, 1383460, 1596300, 1729325, 2075190, 3458650, 4150380, 5187975, 6917300, 10375950, 20751900]

約数ペア:

[(1, 20751900), (2, 10375950), (3, 6917300), (4, 5187975), (5, 4150380), (6, 3458650), (10, 2075190), (12, 1729325), (13, 1596300), (15, 1383460), (17, 1220700), (20, 1037595), (25, 830076), (26, 798150), (30, 691730), (34, 610350), (39, 532100), (50, 415038), (51, 406900), (52, 399075), (60, 345865), (65, 319260), (68, 305175), (75, 276692), (78, 266050), (85, 244140), (100, 207519), (102, 203450), (130, 159630), (150, 138346), (156, 133025), (170, 122070), (195, 106420), (204, 101725), (221, 93900), (255, 81380), (260, 79815), (300, 69173), (313, 66300), (325, 63852), (340, 61035), (390, 53210), (425, 48828), (442, 46950), (510, 40690), (626, 33150), (650, 31926), (663, 31300), (780, 26605), (850, 24414), (884, 23475), (939, 22100), (975, 21284), (1020, 20345), (1105, 18780), (1252, 16575), (1275, 16276), (1300, 15963), (1326, 15650), (1565, 13260), (1700, 12207), (1878, 11050), (1950, 10642), (2210, 9390), (2550, 8138), (2652, 7825), (3130, 6630), (3315, 6260), (3756, 5525), (3900, 5321), (4069, 5100), (4420, 4695)]