31466240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 144

約数和(自身を含む): 85161216

約数和(自身を除く): 53694976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 61, 62, 64, 65, 80, 104, 122, 124, 128, 130, 155, 160, 208, 244, 248, 256, 260, 305, 310, 320, 403, 416, 488, 496, 520, 610, 620, 640, 793, 806, 832, 976, 992, 1040, 1220, 1240, 1280, 1586, 1612, 1664, 1891, 1952, 1984, 2015, 2080, 2440, 2480, 3172, 3224, 3328, 3782, 3904, 3965, 3968, 4030, 4160, 4880, 4960, 6344, 6448, 7564, 7808, 7930, 7936, 8060, 8320, 9455, 9760, 9920, 12688, 12896, 15128, 15616, 15860, 16120, 16640, 18910, 19520, 19840, 24583, 25376, 25792, 30256, 31720, 32240, 37820, 39040, 39680, 49166, 50752, 51584, 60512, 63440, 64480, 75640, 78080, 98332, 101504, 103168, 121024, 122915, 126880, 128960, 151280, 196664, 203008, 242048, 245830, 253760, 257920, 302560, 393328, 484096, 491660, 507520, 515840, 605120, 786656, 983320, 1015040, 1210240, 1573312, 1966640, 2420480, 3146624, 3933280, 6293248, 7866560, 15733120, 31466240]

約数ペア:

[(1, 31466240), (2, 15733120), (4, 7866560), (5, 6293248), (8, 3933280), (10, 3146624), (13, 2420480), (16, 1966640), (20, 1573312), (26, 1210240), (31, 1015040), (32, 983320), (40, 786656), (52, 605120), (61, 515840), (62, 507520), (64, 491660), (65, 484096), (80, 393328), (104, 302560), (122, 257920), (124, 253760), (128, 245830), (130, 242048), (155, 203008), (160, 196664), (208, 151280), (244, 128960), (248, 126880), (256, 122915), (260, 121024), (305, 103168), (310, 101504), (320, 98332), (403, 78080), (416, 75640), (488, 64480), (496, 63440), (520, 60512), (610, 51584), (620, 50752), (640, 49166), (793, 39680), (806, 39040), (832, 37820), (976, 32240), (992, 31720), (1040, 30256), (1220, 25792), (1240, 25376), (1280, 24583), (1586, 19840), (1612, 19520), (1664, 18910), (1891, 16640), (1952, 16120), (1984, 15860), (2015, 15616), (2080, 15128), (2440, 12896), (2480, 12688), (3172, 9920), (3224, 9760), (3328, 9455), (3782, 8320), (3904, 8060), (3965, 7936), (3968, 7930), (4030, 7808), (4160, 7564), (4880, 6448), (4960, 6344)]