279831720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2543}}^1$

素因数の和:2695

約数の個数: 128

約数和(自身を含む): 967127040

約数和(自身を除く): 687295320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 131, 140, 168, 210, 262, 280, 393, 420, 524, 655, 786, 840, 917, 1048, 1310, 1572, 1834, 1965, 2543, 2620, 2751, 3144, 3668, 3930, 4585, 5086, 5240, 5502, 7336, 7629, 7860, 9170, 10172, 11004, 12715, 13755, 15258, 15720, 17801, 18340, 20344, 22008, 25430, 27510, 30516, 35602, 36680, 38145, 50860, 53403, 55020, 61032, 71204, 76290, 89005, 101720, 106806, 110040, 142408, 152580, 178010, 213612, 267015, 305160, 333133, 356020, 427224, 534030, 666266, 712040, 999399, 1068060, 1332532, 1665665, 1998798, 2136120, 2331931, 2665064, 3331330, 3997596, 4663862, 4996995, 6662660, 6995793, 7995192, 9327724, 9993990, 11659655, 13325320, 13991586, 18655448, 19987980, 23319310, 27983172, 34978965, 39975960, 46638620, 55966344, 69957930, 93277240, 139915860, 279831720]

約数ペア:

[(1, 279831720), (2, 139915860), (3, 93277240), (4, 69957930), (5, 55966344), (6, 46638620), (7, 39975960), (8, 34978965), (10, 27983172), (12, 23319310), (14, 19987980), (15, 18655448), (20, 13991586), (21, 13325320), (24, 11659655), (28, 9993990), (30, 9327724), (35, 7995192), (40, 6995793), (42, 6662660), (56, 4996995), (60, 4663862), (70, 3997596), (84, 3331330), (105, 2665064), (120, 2331931), (131, 2136120), (140, 1998798), (168, 1665665), (210, 1332532), (262, 1068060), (280, 999399), (393, 712040), (420, 666266), (524, 534030), (655, 427224), (786, 356020), (840, 333133), (917, 305160), (1048, 267015), (1310, 213612), (1572, 178010), (1834, 152580), (1965, 142408), (2543, 110040), (2620, 106806), (2751, 101720), (3144, 89005), (3668, 76290), (3930, 71204), (4585, 61032), (5086, 55020), (5240, 53403), (5502, 50860), (7336, 38145), (7629, 36680), (7860, 35602), (9170, 30516), (10172, 27510), (11004, 25430), (12715, 22008), (13755, 20344), (15258, 18340), (15720, 17801)]