81722200

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 229003200

約数和(自身を除く): 147281000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 49, 50, 56, 62, 70, 98, 100, 124, 140, 155, 175, 196, 200, 217, 245, 248, 269, 280, 310, 350, 392, 434, 490, 538, 620, 700, 775, 868, 980, 1076, 1085, 1225, 1240, 1345, 1400, 1519, 1550, 1736, 1883, 1960, 2152, 2170, 2450, 2690, 3038, 3100, 3766, 4340, 4900, 5380, 5425, 6076, 6200, 6725, 7532, 7595, 8339, 8680, 9415, 9800, 10760, 10850, 12152, 13181, 13450, 15064, 15190, 16678, 18830, 21700, 26362, 26900, 30380, 33356, 37660, 37975, 41695, 43400, 47075, 52724, 53800, 58373, 60760, 65905, 66712, 75320, 75950, 83390, 94150, 105448, 116746, 131810, 151900, 166780, 188300, 208475, 233492, 263620, 291865, 303800, 329525, 333560, 376600, 408611, 416950, 466984, 527240, 583730, 659050, 817222, 833900, 1167460, 1318100, 1459325, 1634444, 1667800, 2043055, 2334920, 2636200, 2918650, 3268888, 4086110, 5837300, 8172220, 10215275, 11674600, 16344440, 20430550, 40861100, 81722200]

約数ペア:

[(1, 81722200), (2, 40861100), (4, 20430550), (5, 16344440), (7, 11674600), (8, 10215275), (10, 8172220), (14, 5837300), (20, 4086110), (25, 3268888), (28, 2918650), (31, 2636200), (35, 2334920), (40, 2043055), (49, 1667800), (50, 1634444), (56, 1459325), (62, 1318100), (70, 1167460), (98, 833900), (100, 817222), (124, 659050), (140, 583730), (155, 527240), (175, 466984), (196, 416950), (200, 408611), (217, 376600), (245, 333560), (248, 329525), (269, 303800), (280, 291865), (310, 263620), (350, 233492), (392, 208475), (434, 188300), (490, 166780), (538, 151900), (620, 131810), (700, 116746), (775, 105448), (868, 94150), (980, 83390), (1076, 75950), (1085, 75320), (1225, 66712), (1240, 65905), (1345, 60760), (1400, 58373), (1519, 53800), (1550, 52724), (1736, 47075), (1883, 43400), (1960, 41695), (2152, 37975), (2170, 37660), (2450, 33356), (2690, 30380), (3038, 26900), (3100, 26362), (3766, 21700), (4340, 18830), (4900, 16678), (5380, 15190), (5425, 15064), (6076, 13450), (6200, 13181), (6725, 12152), (7532, 10850), (7595, 10760), (8339, 9800), (8680, 9415)]