646353680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:353

約数の個数: 160

約数和(自身を含む): 1769720064

約数和(自身を除く): 1123366384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 97, 112, 140, 146, 163, 194, 280, 292, 326, 365, 388, 485, 511, 560, 584, 652, 679, 730, 776, 815, 970, 1022, 1141, 1168, 1304, 1358, 1460, 1552, 1630, 1940, 2044, 2282, 2555, 2608, 2716, 2920, 3260, 3395, 3880, 4088, 4564, 5110, 5432, 5705, 5840, 6520, 6790, 7081, 7760, 8176, 9128, 10220, 10864, 11410, 11899, 13040, 13580, 14162, 15811, 18256, 20440, 22820, 23798, 27160, 28324, 31622, 35405, 40880, 45640, 47596, 49567, 54320, 56648, 59495, 63244, 70810, 79055, 83293, 91280, 95192, 99134, 110677, 113296, 118990, 126488, 141620, 158110, 166586, 190384, 198268, 221354, 237980, 247835, 252976, 283240, 316220, 333172, 396536, 416465, 442708, 475960, 495670, 553385, 566480, 632440, 666344, 793072, 832930, 885416, 951920, 991340, 1106770, 1154203, 1264880, 1332688, 1665860, 1770832, 1982680, 2213540, 2308406, 3331720, 3965360, 4427080, 4616812, 5771015, 6663440, 8079421, 8854160, 9233624, 11542030, 16158842, 18467248, 23084060, 32317684, 40397105, 46168120, 64635368, 80794210, 92336240, 129270736, 161588420, 323176840, 646353680]

約数ペア:

[(1, 646353680), (2, 323176840), (4, 161588420), (5, 129270736), (7, 92336240), (8, 80794210), (10, 64635368), (14, 46168120), (16, 40397105), (20, 32317684), (28, 23084060), (35, 18467248), (40, 16158842), (56, 11542030), (70, 9233624), (73, 8854160), (80, 8079421), (97, 6663440), (112, 5771015), (140, 4616812), (146, 4427080), (163, 3965360), (194, 3331720), (280, 2308406), (292, 2213540), (326, 1982680), (365, 1770832), (388, 1665860), (485, 1332688), (511, 1264880), (560, 1154203), (584, 1106770), (652, 991340), (679, 951920), (730, 885416), (776, 832930), (815, 793072), (970, 666344), (1022, 632440), (1141, 566480), (1168, 553385), (1304, 495670), (1358, 475960), (1460, 442708), (1552, 416465), (1630, 396536), (1940, 333172), (2044, 316220), (2282, 283240), (2555, 252976), (2608, 247835), (2716, 237980), (2920, 221354), (3260, 198268), (3395, 190384), (3880, 166586), (4088, 158110), (4564, 141620), (5110, 126488), (5432, 118990), (5705, 113296), (5840, 110677), (6520, 99134), (6790, 95192), (7081, 91280), (7760, 83293), (8176, 79055), (9128, 70810), (10220, 63244), (10864, 59495), (11410, 56648), (11899, 54320), (13040, 49567), (13580, 47596), (14162, 45640), (15811, 40880), (18256, 35405), (20440, 31622), (22820, 28324), (23798, 27160)]