398333860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:797

約数の個数: 96

約数和(自身を含む): 927722880

約数和(自身を除く): 529389020

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 41, 74, 76, 82, 95, 148, 164, 185, 190, 205, 370, 380, 410, 691, 703, 740, 779, 820, 1382, 1406, 1517, 1558, 2764, 2812, 3034, 3116, 3455, 3515, 3895, 6068, 6910, 7030, 7585, 7790, 13129, 13820, 14060, 15170, 15580, 25567, 26258, 28331, 28823, 30340, 51134, 52516, 56662, 57646, 65645, 102268, 113324, 115292, 127835, 131290, 141655, 144115, 255670, 262580, 283310, 288230, 485773, 511340, 538289, 566620, 576460, 971546, 1048247, 1076578, 1943092, 2096494, 2153156, 2428865, 2691445, 4192988, 4857730, 5241235, 5382890, 9715460, 10482470, 10765780, 19916693, 20964940, 39833386, 79666772, 99583465, 199166930, 398333860]

約数ペア:

[(1, 398333860), (2, 199166930), (4, 99583465), (5, 79666772), (10, 39833386), (19, 20964940), (20, 19916693), (37, 10765780), (38, 10482470), (41, 9715460), (74, 5382890), (76, 5241235), (82, 4857730), (95, 4192988), (148, 2691445), (164, 2428865), (185, 2153156), (190, 2096494), (205, 1943092), (370, 1076578), (380, 1048247), (410, 971546), (691, 576460), (703, 566620), (740, 538289), (779, 511340), (820, 485773), (1382, 288230), (1406, 283310), (1517, 262580), (1558, 255670), (2764, 144115), (2812, 141655), (3034, 131290), (3116, 127835), (3455, 115292), (3515, 113324), (3895, 102268), (6068, 65645), (6910, 57646), (7030, 56662), (7585, 52516), (7790, 51134), (13129, 30340), (13820, 28823), (14060, 28331), (15170, 26258), (15580, 25567)]