20199932935

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{787}}^1\times {\mathrm{2969}}^1$

素因数の和:3800

約数の個数: 64

約数和(自身を含む): 31454438400

約数和(自身を除く): 11254505465

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 787, 1235, 1729, 2969, 3935, 5509, 8645, 10231, 14845, 14953, 20783, 27545, 38597, 51155, 56411, 71617, 74765, 103915, 104671, 192985, 194389, 270179, 282055, 358085, 394877, 523355, 733343, 971945, 1350895, 1360723, 1974385, 2336603, 3666715, 5133401, 6803615, 11683015, 16356221, 25667005, 30375839, 44395457, 81781105, 151879195, 212630873, 221977285, 310768199, 577140941, 1063154365, 1553840995, 2885704705, 4039986587, 20199932935]

約数ペア:

[(1, 20199932935), (5, 4039986587), (7, 2885704705), (13, 1553840995), (19, 1063154365), (35, 577140941), (65, 310768199), (91, 221977285), (95, 212630873), (133, 151879195), (247, 81781105), (455, 44395457), (665, 30375839), (787, 25667005), (1235, 16356221), (1729, 11683015), (2969, 6803615), (3935, 5133401), (5509, 3666715), (8645, 2336603), (10231, 1974385), (14845, 1360723), (14953, 1350895), (20783, 971945), (27545, 733343), (38597, 523355), (51155, 394877), (56411, 358085), (71617, 282055), (74765, 270179), (103915, 194389), (104671, 192985)]