61578400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:255

約数の個数: 144

約数和(自身を含む): 167989248

約数和(自身を除く): 106410848

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, 191, 200, 208, 248, 260, 310, 325, 382, 400, 403, 416, 496, 520, 620, 650, 764, 775, 800, 806, 955, 992, 1040, 1240, 1300, 1528, 1550, 1612, 1910, 2015, 2080, 2480, 2483, 2600, 3056, 3100, 3224, 3820, 4030, 4775, 4960, 4966, 5200, 5921, 6112, 6200, 6448, 7640, 8060, 9550, 9932, 10075, 10400, 11842, 12400, 12415, 12896, 15280, 16120, 19100, 19864, 20150, 23684, 24800, 24830, 29605, 30560, 32240, 38200, 39728, 40300, 47368, 49660, 59210, 62075, 64480, 76400, 76973, 79456, 80600, 94736, 99320, 118420, 124150, 148025, 152800, 153946, 161200, 189472, 198640, 236840, 248300, 296050, 307892, 322400, 384865, 397280, 473680, 496600, 592100, 615784, 769730, 947360, 993200, 1184200, 1231568, 1539460, 1924325, 1986400, 2368400, 2463136, 3078920, 3848650, 4736800, 6157840, 7697300, 12315680, 15394600, 30789200, 61578400]

約数ペア:

[(1, 61578400), (2, 30789200), (4, 15394600), (5, 12315680), (8, 7697300), (10, 6157840), (13, 4736800), (16, 3848650), (20, 3078920), (25, 2463136), (26, 2368400), (31, 1986400), (32, 1924325), (40, 1539460), (50, 1231568), (52, 1184200), (62, 993200), (65, 947360), (80, 769730), (100, 615784), (104, 592100), (124, 496600), (130, 473680), (155, 397280), (160, 384865), (191, 322400), (200, 307892), (208, 296050), (248, 248300), (260, 236840), (310, 198640), (325, 189472), (382, 161200), (400, 153946), (403, 152800), (416, 148025), (496, 124150), (520, 118420), (620, 99320), (650, 94736), (764, 80600), (775, 79456), (800, 76973), (806, 76400), (955, 64480), (992, 62075), (1040, 59210), (1240, 49660), (1300, 47368), (1528, 40300), (1550, 39728), (1612, 38200), (1910, 32240), (2015, 30560), (2080, 29605), (2480, 24830), (2483, 24800), (2600, 23684), (3056, 20150), (3100, 19864), (3224, 19100), (3820, 16120), (4030, 15280), (4775, 12896), (4960, 12415), (4966, 12400), (5200, 11842), (5921, 10400), (6112, 10075), (6200, 9932), (6448, 9550), (7640, 8060)]