194156720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1114

約数の個数: 80

約数和(自身を含む): 472350720

約数和(自身を除く): 278194000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 496, 620, 632, 790, 991, 1240, 1264, 1580, 1982, 2449, 2480, 3160, 3964, 4898, 4955, 6320, 7928, 9796, 9910, 12245, 15856, 19592, 19820, 24490, 30721, 39184, 39640, 48980, 61442, 78289, 79280, 97960, 122884, 153605, 156578, 195920, 245768, 307210, 313156, 391445, 491536, 614420, 626312, 782890, 1228840, 1252624, 1565780, 2426959, 2457680, 3131560, 4853918, 6263120, 9707836, 12134795, 19415672, 24269590, 38831344, 48539180, 97078360, 194156720]

約数ペア:

[(1, 194156720), (2, 97078360), (4, 48539180), (5, 38831344), (8, 24269590), (10, 19415672), (16, 12134795), (20, 9707836), (31, 6263120), (40, 4853918), (62, 3131560), (79, 2457680), (80, 2426959), (124, 1565780), (155, 1252624), (158, 1228840), (248, 782890), (310, 626312), (316, 614420), (395, 491536), (496, 391445), (620, 313156), (632, 307210), (790, 245768), (991, 195920), (1240, 156578), (1264, 153605), (1580, 122884), (1982, 97960), (2449, 79280), (2480, 78289), (3160, 61442), (3964, 48980), (4898, 39640), (4955, 39184), (6320, 30721), (7928, 24490), (9796, 19820), (9910, 19592), (12245, 15856)]