222778400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:755

約数の個数: 144

約数和(自身を含む): 605461248

約数和(自身を除く): 382682848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 416, 496, 520, 620, 650, 691, 775, 800, 806, 992, 1040, 1240, 1300, 1382, 1550, 1612, 2015, 2080, 2480, 2600, 2764, 3100, 3224, 3455, 4030, 4960, 5200, 5528, 6200, 6448, 6910, 8060, 8983, 10075, 10400, 11056, 12400, 12896, 13820, 16120, 17275, 17966, 20150, 21421, 22112, 24800, 27640, 32240, 34550, 35932, 40300, 42842, 44915, 55280, 64480, 69100, 71864, 80600, 85684, 89830, 107105, 110560, 138200, 143728, 161200, 171368, 179660, 214210, 224575, 276400, 278473, 287456, 322400, 342736, 359320, 428420, 449150, 535525, 552800, 556946, 685472, 718640, 856840, 898300, 1071050, 1113892, 1392365, 1437280, 1713680, 1796600, 2142100, 2227784, 2784730, 3427360, 3593200, 4284200, 4455568, 5569460, 6961825, 7186400, 8568400, 8911136, 11138920, 13923650, 17136800, 22277840, 27847300, 44555680, 55694600, 111389200, 222778400]

約数ペア:

[(1, 222778400), (2, 111389200), (4, 55694600), (5, 44555680), (8, 27847300), (10, 22277840), (13, 17136800), (16, 13923650), (20, 11138920), (25, 8911136), (26, 8568400), (31, 7186400), (32, 6961825), (40, 5569460), (50, 4455568), (52, 4284200), (62, 3593200), (65, 3427360), (80, 2784730), (100, 2227784), (104, 2142100), (124, 1796600), (130, 1713680), (155, 1437280), (160, 1392365), (200, 1113892), (208, 1071050), (248, 898300), (260, 856840), (310, 718640), (325, 685472), (400, 556946), (403, 552800), (416, 535525), (496, 449150), (520, 428420), (620, 359320), (650, 342736), (691, 322400), (775, 287456), (800, 278473), (806, 276400), (992, 224575), (1040, 214210), (1240, 179660), (1300, 171368), (1382, 161200), (1550, 143728), (1612, 138200), (2015, 110560), (2080, 107105), (2480, 89830), (2600, 85684), (2764, 80600), (3100, 71864), (3224, 69100), (3455, 64480), (4030, 55280), (4960, 44915), (5200, 42842), (5528, 40300), (6200, 35932), (6448, 34550), (6910, 32240), (8060, 27640), (8983, 24800), (10075, 22112), (10400, 21421), (11056, 20150), (12400, 17966), (12896, 17275), (13820, 16120)]