64459980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{163}}^1$

素因数の和:217

約数の個数: 144

約数和(自身を含む): 213114720

約数和(自身を除く): 148654740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 163, 169, 180, 195, 234, 260, 326, 338, 390, 468, 489, 507, 585, 652, 676, 780, 815, 845, 978, 1014, 1170, 1467, 1521, 1630, 1690, 1956, 2028, 2119, 2197, 2340, 2445, 2535, 2934, 3042, 3260, 3380, 4238, 4394, 4890, 5070, 5868, 6084, 6357, 6591, 7335, 7605, 8476, 8788, 9780, 10140, 10595, 10985, 12714, 13182, 14670, 15210, 19071, 19773, 21190, 21970, 25428, 26364, 27547, 29340, 30420, 31785, 32955, 38142, 39546, 42380, 43940, 55094, 63570, 65910, 76284, 79092, 82641, 95355, 98865, 110188, 127140, 131820, 137735, 165282, 190710, 197730, 247923, 275470, 330564, 358111, 381420, 395460, 413205, 495846, 550940, 716222, 826410, 991692, 1074333, 1239615, 1432444, 1652820, 1790555, 2148666, 2479230, 3222999, 3581110, 4297332, 4958460, 5371665, 6445998, 7162220, 10743330, 12891996, 16114995, 21486660, 32229990, 64459980]

約数ペア:

[(1, 64459980), (2, 32229990), (3, 21486660), (4, 16114995), (5, 12891996), (6, 10743330), (9, 7162220), (10, 6445998), (12, 5371665), (13, 4958460), (15, 4297332), (18, 3581110), (20, 3222999), (26, 2479230), (30, 2148666), (36, 1790555), (39, 1652820), (45, 1432444), (52, 1239615), (60, 1074333), (65, 991692), (78, 826410), (90, 716222), (117, 550940), (130, 495846), (156, 413205), (163, 395460), (169, 381420), (180, 358111), (195, 330564), (234, 275470), (260, 247923), (326, 197730), (338, 190710), (390, 165282), (468, 137735), (489, 131820), (507, 127140), (585, 110188), (652, 98865), (676, 95355), (780, 82641), (815, 79092), (845, 76284), (978, 65910), (1014, 63570), (1170, 55094), (1467, 43940), (1521, 42380), (1630, 39546), (1690, 38142), (1956, 32955), (2028, 31785), (2119, 30420), (2197, 29340), (2340, 27547), (2445, 26364), (2535, 25428), (2934, 21970), (3042, 21190), (3260, 19773), (3380, 19071), (4238, 15210), (4394, 14670), (4890, 13182), (5070, 12714), (5868, 10985), (6084, 10595), (6357, 10140), (6591, 9780), (7335, 8788), (7605, 8476)]