1389197440

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^3\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 128

約数和(自身を含む): 3478302000

約数和(自身を除く): 2089104560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 89, 116, 128, 145, 160, 178, 232, 290, 320, 356, 445, 464, 580, 640, 712, 841, 890, 928, 1160, 1424, 1682, 1780, 1856, 2320, 2581, 2848, 3364, 3560, 3712, 4205, 4640, 5162, 5696, 6728, 7120, 8410, 9280, 10324, 11392, 12905, 13456, 14240, 16820, 18560, 20648, 24389, 25810, 26912, 28480, 33640, 41296, 48778, 51620, 53824, 56960, 67280, 74849, 82592, 97556, 103240, 107648, 121945, 134560, 149698, 165184, 195112, 206480, 243890, 269120, 299396, 330368, 374245, 390224, 412960, 487780, 538240, 598792, 748490, 780448, 825920, 975560, 1197584, 1496980, 1560896, 1651840, 1951120, 2170621, 2395168, 2993960, 3121792, 3902240, 4341242, 4790336, 5987920, 7804480, 8682484, 9580672, 10853105, 11975840, 15608960, 17364968, 21706210, 23951680, 34729936, 43412420, 47903360, 69459872, 86824840, 138919744, 173649680, 277839488, 347299360, 694598720, 1389197440]

約数ペア:

[(1, 1389197440), (2, 694598720), (4, 347299360), (5, 277839488), (8, 173649680), (10, 138919744), (16, 86824840), (20, 69459872), (29, 47903360), (32, 43412420), (40, 34729936), (58, 23951680), (64, 21706210), (80, 17364968), (89, 15608960), (116, 11975840), (128, 10853105), (145, 9580672), (160, 8682484), (178, 7804480), (232, 5987920), (290, 4790336), (320, 4341242), (356, 3902240), (445, 3121792), (464, 2993960), (580, 2395168), (640, 2170621), (712, 1951120), (841, 1651840), (890, 1560896), (928, 1496980), (1160, 1197584), (1424, 975560), (1682, 825920), (1780, 780448), (1856, 748490), (2320, 598792), (2581, 538240), (2848, 487780), (3364, 412960), (3560, 390224), (3712, 374245), (4205, 330368), (4640, 299396), (5162, 269120), (5696, 243890), (6728, 206480), (7120, 195112), (8410, 165184), (9280, 149698), (10324, 134560), (11392, 121945), (12905, 107648), (13456, 103240), (14240, 97556), (16820, 82592), (18560, 74849), (20648, 67280), (24389, 56960), (25810, 53824), (26912, 51620), (28480, 48778), (33640, 41296)]