20526650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 96

約数和(自身を含む): 44997120

約数和(自身を除く): 24470470

約数列:

[1, 2, 5, 10, 17, 19, 25, 31, 34, 38, 41, 50, 62, 82, 85, 95, 155, 170, 190, 205, 310, 323, 410, 425, 475, 527, 589, 646, 697, 775, 779, 850, 950, 1025, 1054, 1178, 1271, 1394, 1550, 1558, 1615, 2050, 2542, 2635, 2945, 3230, 3485, 3895, 5270, 5890, 6355, 6970, 7790, 8075, 10013, 12710, 13175, 13243, 14725, 16150, 17425, 19475, 20026, 21607, 24149, 26350, 26486, 29450, 31775, 34850, 38950, 43214, 48298, 50065, 63550, 66215, 100130, 108035, 120745, 132430, 216070, 241490, 250325, 331075, 410533, 500650, 540175, 603725, 662150, 821066, 1080350, 1207450, 2052665, 4105330, 10263325, 20526650]

約数ペア:

[(1, 20526650), (2, 10263325), (5, 4105330), (10, 2052665), (17, 1207450), (19, 1080350), (25, 821066), (31, 662150), (34, 603725), (38, 540175), (41, 500650), (50, 410533), (62, 331075), (82, 250325), (85, 241490), (95, 216070), (155, 132430), (170, 120745), (190, 108035), (205, 100130), (310, 66215), (323, 63550), (410, 50065), (425, 48298), (475, 43214), (527, 38950), (589, 34850), (646, 31775), (697, 29450), (775, 26486), (779, 26350), (850, 24149), (950, 21607), (1025, 20026), (1054, 19475), (1178, 17425), (1271, 16150), (1394, 14725), (1550, 13243), (1558, 13175), (1615, 12710), (2050, 10013), (2542, 8075), (2635, 7790), (2945, 6970), (3230, 6355), (3485, 5890), (3895, 5270)]