77983600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 120

約数和(自身を含む): 204193280

約数和(自身を除く): 126209680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 38, 40, 50, 62, 76, 80, 95, 100, 124, 152, 155, 190, 200, 248, 304, 310, 331, 380, 400, 475, 496, 589, 620, 662, 760, 775, 950, 1178, 1240, 1324, 1520, 1550, 1655, 1900, 2356, 2480, 2648, 2945, 3100, 3310, 3800, 4712, 5296, 5890, 6200, 6289, 6620, 7600, 8275, 9424, 10261, 11780, 12400, 12578, 13240, 14725, 16550, 20522, 23560, 25156, 26480, 29450, 31445, 33100, 41044, 47120, 50312, 51305, 58900, 62890, 66200, 82088, 100624, 102610, 117800, 125780, 132400, 157225, 164176, 194959, 205220, 235600, 251560, 256525, 314450, 389918, 410440, 503120, 513050, 628900, 779836, 820880, 974795, 1026100, 1257800, 1559672, 1949590, 2052200, 2515600, 3119344, 3899180, 4104400, 4873975, 7798360, 9747950, 15596720, 19495900, 38991800, 77983600]

約数ペア:

[(1, 77983600), (2, 38991800), (4, 19495900), (5, 15596720), (8, 9747950), (10, 7798360), (16, 4873975), (19, 4104400), (20, 3899180), (25, 3119344), (31, 2515600), (38, 2052200), (40, 1949590), (50, 1559672), (62, 1257800), (76, 1026100), (80, 974795), (95, 820880), (100, 779836), (124, 628900), (152, 513050), (155, 503120), (190, 410440), (200, 389918), (248, 314450), (304, 256525), (310, 251560), (331, 235600), (380, 205220), (400, 194959), (475, 164176), (496, 157225), (589, 132400), (620, 125780), (662, 117800), (760, 102610), (775, 100624), (950, 82088), (1178, 66200), (1240, 62890), (1324, 58900), (1520, 51305), (1550, 50312), (1655, 47120), (1900, 41044), (2356, 33100), (2480, 31445), (2648, 29450), (2945, 26480), (3100, 25156), (3310, 23560), (3800, 20522), (4712, 16550), (5296, 14725), (5890, 13240), (6200, 12578), (6289, 12400), (6620, 11780), (7600, 10261), (8275, 9424)]