20138991720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1\times {\mathrm{4513}}^1$

素因数の和:5475

約数の個数: 128

約数和(自身を含む): 61972525440

約数和(自身を除く): 41833533720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 907, 984, 1230, 1640, 1814, 2460, 2721, 3628, 4513, 4535, 4920, 5442, 7256, 9026, 9070, 10884, 13539, 13605, 18052, 18140, 21768, 22565, 27078, 27210, 36104, 36280, 37187, 45130, 54156, 54420, 67695, 74374, 90260, 108312, 108840, 111561, 135390, 148748, 180520, 185033, 185935, 223122, 270780, 297496, 370066, 371870, 446244, 541560, 555099, 557805, 740132, 743740, 892488, 925165, 1110198, 1115610, 1480264, 1487480, 1850330, 2220396, 2231220, 2775495, 3700660, 4093291, 4440792, 4462440, 5550990, 7401320, 8186582, 11101980, 12279873, 16373164, 20466455, 22203960, 24559746, 32746328, 40932910, 49119492, 61399365, 81865820, 98238984, 122798730, 163731640, 167824931, 245597460, 335649862, 491194920, 503474793, 671299724, 839124655, 1006949586, 1342599448, 1678249310, 2013899172, 2517373965, 3356498620, 4027798344, 5034747930, 6712997240, 10069495860, 20138991720]

約数ペア:

[(1, 20138991720), (2, 10069495860), (3, 6712997240), (4, 5034747930), (5, 4027798344), (6, 3356498620), (8, 2517373965), (10, 2013899172), (12, 1678249310), (15, 1342599448), (20, 1006949586), (24, 839124655), (30, 671299724), (40, 503474793), (41, 491194920), (60, 335649862), (82, 245597460), (120, 167824931), (123, 163731640), (164, 122798730), (205, 98238984), (246, 81865820), (328, 61399365), (410, 49119492), (492, 40932910), (615, 32746328), (820, 24559746), (907, 22203960), (984, 20466455), (1230, 16373164), (1640, 12279873), (1814, 11101980), (2460, 8186582), (2721, 7401320), (3628, 5550990), (4513, 4462440), (4535, 4440792), (4920, 4093291), (5442, 3700660), (7256, 2775495), (9026, 2231220), (9070, 2220396), (10884, 1850330), (13539, 1487480), (13605, 1480264), (18052, 1115610), (18140, 1110198), (21768, 925165), (22565, 892488), (27078, 743740), (27210, 740132), (36104, 557805), (36280, 555099), (37187, 541560), (45130, 446244), (54156, 371870), (54420, 370066), (67695, 297496), (74374, 270780), (90260, 223122), (108312, 185935), (108840, 185033), (111561, 180520), (135390, 148748)]