257221413760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^2\times {\mathrm{418219}}^1$

素因数の和:418300

約数の個数: 96

約数和(自身を含む): 635397463800

約数和(自身を除く): 378176050040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 961, 992, 1240, 1922, 1984, 2480, 3844, 3968, 4805, 4960, 7688, 9610, 9920, 15376, 19220, 19840, 30752, 38440, 61504, 76880, 123008, 153760, 307520, 418219, 615040, 836438, 1672876, 2091095, 3345752, 4182190, 6691504, 8364380, 12964789, 13383008, 16728760, 25929578, 26766016, 33457520, 51859156, 53532032, 64823945, 66915040, 103718312, 129647890, 133830080, 207436624, 259295780, 267660160, 401908459, 414873248, 518591560, 803816918, 829746496, 1037183120, 1607633836, 1659492992, 2009542295, 2074366240, 3215267672, 4019084590, 4148732480, 6430535344, 8038169180, 8297464960, 12861070688, 16076338360, 25722141376, 32152676720, 51444282752, 64305353440, 128610706880, 257221413760]

約数ペア:

[(1, 257221413760), (2, 128610706880), (4, 64305353440), (5, 51444282752), (8, 32152676720), (10, 25722141376), (16, 16076338360), (20, 12861070688), (31, 8297464960), (32, 8038169180), (40, 6430535344), (62, 4148732480), (64, 4019084590), (80, 3215267672), (124, 2074366240), (128, 2009542295), (155, 1659492992), (160, 1607633836), (248, 1037183120), (310, 829746496), (320, 803816918), (496, 518591560), (620, 414873248), (640, 401908459), (961, 267660160), (992, 259295780), (1240, 207436624), (1922, 133830080), (1984, 129647890), (2480, 103718312), (3844, 66915040), (3968, 64823945), (4805, 53532032), (4960, 51859156), (7688, 33457520), (9610, 26766016), (9920, 25929578), (15376, 16728760), (19220, 13383008), (19840, 12964789), (30752, 8364380), (38440, 6691504), (61504, 4182190), (76880, 3345752), (123008, 2091095), (153760, 1672876), (307520, 836438), (418219, 615040)]