31921239896

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{4519}}^1$

素因数の和:4889

約数の個数: 128

約数和(自身を含む): 76300492800

約数和(自身を除く): 44379252904

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 313, 364, 403, 434, 626, 728, 806, 868, 1252, 1612, 1736, 2191, 2504, 2821, 3224, 4069, 4382, 4519, 5642, 8138, 8764, 9038, 9703, 11284, 16276, 17528, 18076, 19406, 22568, 28483, 31633, 32552, 36152, 38812, 56966, 58747, 63266, 67921, 77624, 113932, 117494, 126139, 126532, 135842, 140089, 227864, 234988, 252278, 253064, 271684, 280178, 411229, 469976, 504556, 543368, 560356, 822458, 882973, 980623, 1009112, 1120712, 1414447, 1644916, 1765946, 1821157, 1961246, 2828894, 3289832, 3531892, 3642314, 3922492, 5657788, 7063784, 7284628, 7844984, 9901129, 11315576, 12748099, 14569256, 18387811, 19802258, 25496198, 36775622, 39604516, 43847857, 50992396, 73551244, 79209032, 87695714, 101984792, 128714677, 147102488, 175391428, 257429354, 306934999, 350782856, 514858708, 570022141, 613869998, 1029717416, 1140044282, 1227739996, 2280088564, 2455479992, 3990154987, 4560177128, 7980309974, 15960619948, 31921239896]

約数ペア:

[(1, 31921239896), (2, 15960619948), (4, 7980309974), (7, 4560177128), (8, 3990154987), (13, 2455479992), (14, 2280088564), (26, 1227739996), (28, 1140044282), (31, 1029717416), (52, 613869998), (56, 570022141), (62, 514858708), (91, 350782856), (104, 306934999), (124, 257429354), (182, 175391428), (217, 147102488), (248, 128714677), (313, 101984792), (364, 87695714), (403, 79209032), (434, 73551244), (626, 50992396), (728, 43847857), (806, 39604516), (868, 36775622), (1252, 25496198), (1612, 19802258), (1736, 18387811), (2191, 14569256), (2504, 12748099), (2821, 11315576), (3224, 9901129), (4069, 7844984), (4382, 7284628), (4519, 7063784), (5642, 5657788), (8138, 3922492), (8764, 3642314), (9038, 3531892), (9703, 3289832), (11284, 2828894), (16276, 1961246), (17528, 1821157), (18076, 1765946), (19406, 1644916), (22568, 1414447), (28483, 1120712), (31633, 1009112), (32552, 980623), (36152, 882973), (38812, 822458), (56966, 560356), (58747, 543368), (63266, 504556), (67921, 469976), (77624, 411229), (113932, 280178), (117494, 271684), (126139, 253064), (126532, 252278), (135842, 234988), (140089, 227864)]