278751690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2039}}^1$

素因数の和:2097

約数の個数: 144

約数和(自身を含む): 870704640

約数和(自身を除く): 591952950

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 49, 62, 63, 70, 90, 93, 98, 105, 126, 147, 155, 186, 210, 217, 245, 279, 294, 310, 315, 434, 441, 465, 490, 558, 630, 651, 735, 882, 930, 1085, 1302, 1395, 1470, 1519, 1953, 2039, 2170, 2205, 2790, 3038, 3255, 3906, 4078, 4410, 4557, 6117, 6510, 7595, 9114, 9765, 10195, 12234, 13671, 14273, 15190, 18351, 19530, 20390, 22785, 27342, 28546, 30585, 36702, 42819, 45570, 61170, 63209, 68355, 71365, 85638, 91755, 99911, 126418, 128457, 136710, 142730, 183510, 189627, 199822, 214095, 256914, 299733, 316045, 379254, 428190, 442463, 499555, 568881, 599466, 632090, 642285, 884926, 899199, 948135, 999110, 1137762, 1284570, 1327389, 1498665, 1798398, 1896270, 2212315, 2654778, 2844405, 2997330, 3097241, 3982167, 4424630, 4495995, 5688810, 6194482, 6636945, 7964334, 8991990, 9291723, 13273890, 15486205, 18583446, 19910835, 27875169, 30972410, 39821670, 46458615, 55750338, 92917230, 139375845, 278751690]

約数ペア:

[(1, 278751690), (2, 139375845), (3, 92917230), (5, 55750338), (6, 46458615), (7, 39821670), (9, 30972410), (10, 27875169), (14, 19910835), (15, 18583446), (18, 15486205), (21, 13273890), (30, 9291723), (31, 8991990), (35, 7964334), (42, 6636945), (45, 6194482), (49, 5688810), (62, 4495995), (63, 4424630), (70, 3982167), (90, 3097241), (93, 2997330), (98, 2844405), (105, 2654778), (126, 2212315), (147, 1896270), (155, 1798398), (186, 1498665), (210, 1327389), (217, 1284570), (245, 1137762), (279, 999110), (294, 948135), (310, 899199), (315, 884926), (434, 642285), (441, 632090), (465, 599466), (490, 568881), (558, 499555), (630, 442463), (651, 428190), (735, 379254), (882, 316045), (930, 299733), (1085, 256914), (1302, 214095), (1395, 199822), (1470, 189627), (1519, 183510), (1953, 142730), (2039, 136710), (2170, 128457), (2205, 126418), (2790, 99911), (3038, 91755), (3255, 85638), (3906, 71365), (4078, 68355), (4410, 63209), (4557, 61170), (6117, 45570), (6510, 42819), (7595, 36702), (9114, 30585), (9765, 28546), (10195, 27342), (12234, 22785), (13671, 20390), (14273, 19530), (15190, 18351)]